Metadata: Bridge locations in Minnesota

Bridge locations in Minnesota

This page last updated: 2022-08-23
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
  1. Overview
  2. Data Quality
  3. Data Organization
  4. Coordinate System
  5. Attributes
  6. Distribution - Get Data
  7. Metadata Reference

Section 1: Overview

Originator:Minnesota Department of Transportation

Title: Bridge locations in Minnesota

Abstract: This is a point displayed dataset of in-service bridge locations throughout Minnesota. Data is gathered from bridge construction plans, inspection reports, load ratings and clearance forms prepared by all Minnesota agencies that own and maintain structures. This data is exported daily from the Structure Information Management System (SIMS) and included in the feature class attribute table. The Data is maintained by the Bridge Inventory Management Unit located at the MnDOT Bridge Office. The attribute table currently contains the following data: Bridge Number, Latitude/Longitude, UTM X/Y, Location Description, MnDOT District, County, Service Description, Year Built, Owner, On/Under Information, AADT/HCAADT, Bridge Type, Bridge Length, Bridge Width, Open/Posted/Closed Status, Load Postings, NBI Ratings/Overall Condition Rating, Scour Code, and Bridge Clearances.

Purpose: This feature class is intended to be used independently or in congruence with other feature classes/shapefiles for analysis of in-service bridges and culverts.

Time Period of Content Date: 2022-08-23

Currentness Reference:

Progress: In work

Maintenance and Update Frequency: Daily

Spatial Extent of Data: State of Minnesota

Bounding Coordinates: -97.508970
-89.028990
49.652543
43.192405

Place Keywords:

Theme Keywords: Bridge, Location, Transportation, Bridge Load Posting, Bridge Condition, and Bridge Owner

Theme Keyword Thesaurus: None

Access Constraints: Access to the Spatial Data Warehouse, or data by request

Use Constraints: None. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the publisher would be appreciated.

Contact Person Information: Joe Russella, Bridge inventory Management Unit
Minnesota Department of Transportation
3485 Hadley Ave.
Oakdale, MN  55128
Phone: 651-366-4539
Fax: 0
Email: joe.russella@state.mn.us

Browse Graphic: None available

Associated Data Sets:

Section 2: Data Quality

Attribute Accuracy: Any records that are modified in SIMS will be reflected in the attribute table the following day. The accuracy of the data is dependent on the entries in SIMS. The initial data is gathered from construction plans and modified throughout the life of the bridge based on routine inspections completed by the owner agency. Latitude and Longitude are based on the location description given on the construction plan, the bridge point is not meant to be exact, BIMU attempts to place the point in the center of the structure and within 40 ft of the route.

Logical Consistency:

Completeness: All bridges and culverts that are labeled as 'Open to Traffic' in the Structure Inventory Management System (SIMS) are displayed in this feature class. Anything classified as part of the National Tunnel Inventory (NTI) is excluded from this feature class. Once a structure is created, removed or replaced the updated data set will appear the following day. For this reason, if analysis is being done it is important to save a copy of the feature class as the data could change day to day.

Horizontal Positional Accuracy: Horizontal positioning is determined while adding a structure to inventory, the Bridge Inventory Management Unit (BIMU) uses the location description from the original construction plans (which are available in eDOCS). BIMU will place a point in SIMS locating the structure and a latitude and longitude will be created by the program. BIMU attempts to locate the point near the center of the structure and within 40 ft of the route carried.

Vertical Positional Accuracy: Vertical positioning is determined while adding a structure to inventory, the Bridge Inventory Management Unit (BIMU) uses the location description from the original construction plans (which are available in eDOCS). BIMU will place a point in SIMS locating the structure and a latitude and longitude will be created by the program. BIMU attempts to locate the point near the center of the structure and within 40 ft of the route carried.

Lineage: All attributes in this feature class are derived from the Structure Inventory Management System (SIMS) where structures are added, managed and removed from inventory. The data is managed by the Bridge Inventory Management Unit (BIMU) located at the MnDOT Bridge Office. Most location fields remain static through the life of a structure, other fields will change and can be changed by the owner agency based on routine field inspections.
All structures are aligned with the LRS route network, while not in the attribute table this information can be obtained through a request to the data contact in this metadata. The bridge and LRS integration data are quality checked automatically weekly and changes are made periodically throughout the inspection year when there are route number changes or route modifications (measure changes).

Section 3: Spatial Data Organization (not used in this metadata)


Section 4: Coordinate System

Horizontal Coordinate Scheme: Universal Transverse Mercator

UTM Zone Number: 15

Horizontal Datum: NAD83

Horizontal Units: meters

Vertical Datum:

Vertical Units:

Depth Datum:

Depth Units:

Section 5: Attributes

Overview:

Detailed Citation:

Table Detail:
SDW_INFRA.BRIDGES (Assets(ESRI))
Field NameValid ValuesDefinitionDefinition Source
OBJECTID
-
Internal feature number.ESRI
Shape
-
Feature geometryESRI
BRIDGE_NUM
-
Official structure numberFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
LATITUDE
-
This item identifies the latitude of the structure in decimal degrees.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
LONGITUDE
-
This item identifies the latitude of the structure in decimal degrees.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
UTM_X
-
Universal Transverse Mercator - XFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
UTM_Y
-
Universal Transverse Mercator - YFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
LOCATION_DESC
-
A narrative description of the bridge location.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
MNDOT_DISTRICT
-
This item represents the MnDOT regional District in which the structure is located. (District '05' is Metro)Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
COUNTY_CODE
-
This item identifies the county in which the structure is located.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
COUNTY_DESC
-
This item identifies the county in which the structure is located.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
SERVICE_CODEenumeratedThis item identifies the type of service on the structure.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1Highway
2Railroad
3Ped/Bike
4Highway/Railraod
5Highway/Ped
6Overpass or 2nd Lvl
73rd Lvl Interchange
84th Lvl Interchange
9Building or Plaza
0Other
SERVICE_DESCenumeratedThis item identifies the type of service on the structure.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1Highway
2Railroad
3Ped/Bike
4Highway/Railraod
5Highway/Ped
6Overpass or 2nd Lvl
73rd Lvl Interchange
84th Lvl Interchange
9Building or Plaza
0Other
YEAR_BUILT
-
This item refers to the original construction.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
OWNER_CODEenumeratedThis item identifies the agency responsible for maintaining the structure.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1State
2County
3Township
4City
11State Forest
12Local Park
21Other State
25Other Local
26Private (other than RR)
27Railroad
31State Toll
32Local Toll
60Other Federal
62Bureau of Indian Affairs
64National Forest
66National Park
68Bureau of Reclamation
69Buereau of Reclamation
70Corps of Engineers
80Unknown
OWNER_DESCenumeratedThis item identifies the agency responsible for maintaining the structure.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1State
2County
3Township
4City
11State Forest
12Local Park
21Other State
25Other Local
26Private (Other than RR)
27Railroad
31State Toll
32Local Toll
60Other Federal
62Bureau of Indian Affairs
64National Forest
66National Park
68Bureau of Reclamation
69Buereau of Reclamation
70Corps of Engineers
80Unknown
ON_UNDER_CODEenumeratedA number or letter that is assigned to a structure based on whether a route is carried by or travels underneath a structure. There will be multiple records for each bridge that has one or more routes traveling under the structure.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1Route On Bridge
21st Route Under Bridge
A2nd Route Under Bridge
B3rd Route Under Bridge
C4th Route Under Bridge
D5th Route Under Bridge
E6th Route Under Bridge
F7th Route Under Bridge
G8th Route Under Bridge Numbered by Importance: A to Z
ON_UNDER_DESCenumeratedDescription of the field On_Under_Code along with what street name that is assigned to the specific bridges On_Under_Code. (Ex. Route On Bridge: MN 38, Route Under Bridge: 4th St).Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1Route On Bridge
21st Route Under Bridge
A2nd Route Under Bridge
B3rd Route Under Bridge
C4th Route Under Bridge
D5th Route Under Bridge
E6th Route Under Bridge
F7th Route Under Bridge
G8th Route Under Bridge Numbered by Importance: A to Z
AADT
-
This item indicates the annual average daily traffic on the roadway traveling on the structure.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
HCAADT
-
This item represents the heavy commercial annual average daily traffic (HCAADT) on the roadway traveling on the structure.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
AADT_YEAR
-
This item records the year in which NBI Item 29 (Average Daily Traffic) was calculated.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
BRIDGE_TYPE_CODEenumeratedBridge Design Type: Material: (1st Digit of Code)Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1Concrete
2Concrete Continuous
3Steel
4Steel Continuous
5Pre-stressed Concrete
6Pre-stressed Concrete Continuous
7Wood or Timber
8Masonry
9Aluminum, Wrought Iron, Cast Iron
0Other Type of Design
2nd & 3rd Digit of Code
1Slab
2Stringer/ Multi Beam or Girder
3Girder and Floor Beam System
4Tee Beam
5Box Beam or Girders - Multiple
6Box Beam or Girders - Single or Spread
7Frame (Except Frame Culverts)
8Orthotropic
9Truss - Deck
10Truss - Thru
11Arch - Deck
12Arch - Thru
13Suspension
14Stayed Girder
15Moveable - Lift
16Moveable - Bascule
17Movable - Swing
18Tunnel
19Culvert
20Mixed Types
21Segmental Box Girder
22Channel Beam
00Other
BRIDGE_TYPE_DESCenumeratedMaterial: (1st Digit of Code)Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1Concrete
2Concrete Continuous
3Steel
4Steel Continuous
5Pre-stressed Concrete
6Pre-stressed Concrete Continuous
7Wood or Timber
8Masonry
9Aluminum, Wrought Iron, Cast Iron
0Other Type of
Design: (2nd & 3rd Digit of Code)
1Slab
2Stringer/ Multi Beam or Girder
3Girder and Floor Beam System
4Tee Beam
5Box Beam or Girders - Multiple
6Box Beam or Girders - Single or Spread
7Frame (Except Frame Culverts)
8Orthotropic
9Truss - Deck
10Truss
11Arch - Deck
12Arch - Thru
13Suspension
14Stayed Girder
15Moveable - Lift
16Moveable - Bascule
17Movable - Swing
18Tunnel
19Culvert
20Mixed Types
21Segmental Box Girder
22Channel Beam
00Other
LENGTH_FEET
-
This item indicates the total length of the structure, as measured along the centerline of the roadway. Measured in Feet, truncated to a tenth of a foot.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
WIDTH_FEET
-
This item indicates the out-to-out width of the structure. Measured in Feet and truncated to a tenth of a footFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
STATUS_CODEenumeratedThis item describes the current operational status of a structure (i.e., open, posted, closed).Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
AOpen
BOpen, Posting Required
DOpen, Temp Shoring
EOpen, Temp Structure
GNew Bridge, Not Open
KClosed
PPosted For Load
RPosted For Other Load Cap. Restriction
STATUS_DESenumeratedThis item describes the current operational status of a structure (i.e., open, posted, closed).Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
AOpen
BOpen, Posting Required
DOpen, Temp Shoring
EOpen, Temp Structure
GNew Bridge, Not Open
KClosed
PPosted For Load
RPosted For Other Load Cap. Restriction
INVENTORY_RATING
-
This item is the Inventory Rating value entered on MnDOT rating forms.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
VEHCLE_POSTED_CAPACITY
-
This item indicates what the load restriction signage at the bridge should read. If no posting is required, this item will be blank The values (in tons) represent as follows. 1 - 2 digits indicating posting is required for single vehicle loadFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
SEMI_POSTED_CAPACITY
-
This item indicates what the load restriction signage at the bridge should read. If no posting is required, this item will be blank. The values (in tons) represent as follows. 1 - 2 digits indicating posting is required for semi-trailer loadFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
DOUBLE_POSTED_CAPACITY
-
This item indicates what the load restriction signage at the bridge should read. If no posting is required, this item will be blank. The values (in tons) represent as follows. 1 - 2 digits indicating posting is required for double bottom loadFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
MNDOT_PERMIT_CODE_ABCenumeratedPermit codes:Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
1No Restriction
2Vehicle Shall Travel down Center of Bridge
3Maximum Vehicle Speed of 5 MPH
4Restriction 2 & 3 Combined
5The Bridge Deck Shall be Planked
6See Special Check
7Need District Engineer Approval
NNot Applicable
A48K
B60K
C72K
XDENIED
DECK_RATINGenumeratedThis item describes the overall general condition rating of the deck (or slab) - this includes the underside of the deck as well as the wearing surface. RatingsFind Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
0-4POOR
5-6FAIR
7-9GOOD
SUPERSTRUCTURE_RATINGenumeratedThis item describes the overall general condition of the superstructure. It includes all structural components located above (and including) the bearings. Ratings:Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
0-4POOR
5-6FAIR
7-9GOOD
SUBSTRUCTUCTURE_RATINGenumeratedThis item describes the overall general condition of the substructure. It includes all structural components located below the bearings. Ratings:Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
0-4POOR
5-6FAIR
7-9GOOD
CULVERT_RATINGenumeratedThis rating should reflect the overall general condition of the culvert. If a structure is classified as a culvert, the NBI condition ratings for deck, superstructure, and substructure must be rated 'N'. Ratings:Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
0-4POOR
5-6FAIR
7-9GOOD
RATING_SUMMARYenumeratedDescription of the sum of codes from Deck, Superstructure, Substructure or Culvter Ratings. Ratings:Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
0-4POOR
5-6FAIR
7-9GOOD
MN_SCOUR_CODEenumeratedScour Code:Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
ANon Waterway
GUnknown Foundations
HWell above flood water elev.
ECulvert Structure
ILow Risk to Fairlure
KLimited Risk to Public
MStable For Scour Condition
PCountermesures have been installed, no longer scour critical, POA recommended
CBridge Closed for other than scour
FEvaluation Required
JScour Susceptible
LLow risk
NStable for Scour Conditions
OPOA requires additional action
RScour Critical - Monitoring required
DScour Critical - Immediate action is required - inspection only
UScour Critical - POA indicates countermesures are immediatly necassary
BBridge closed due to scour
VERTICAL_CLR_RD1_FEET
-
This item indicates the minimum vertical clearance from the roadway surface on the structure to any obstruction above the roadway. If there is no obstruction above the bridge roadway this item will be blank. Measured in Feet, truncated to a tenth of a foot. If the Route is a one-way, or a two-way highway divided by a centerline the most restrictive vertical clearance is calculated for both lanes and put in this field. If the Route is divided by a curb or barrier, only the most restrictive clearance for the NB-EB lanes will be input in this field (In this case the Vert. Clearance SB-WB field will be filled out for the SB-WB lanes). If the On/Under code is anything other than '1' the data in this field refers to clearances from roadways under the bridge to the nearest vertical obstruction in the NB-EB lanes. Exception is when the route is not divided then the most restrictive vertical mesaurement is taken on the entire roadway (NB-EB, SB-WB).Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
VERTICAL_CLR2_RD2_FEET
-
This item indicates the minimum vertical clearance from the roadway surface on the structure to any obstruction above the roadway. If there is no obstruction above the bridge roadway this item will be blank. Measured in Feet, truncated to a tenth of a foot. If the Route is a one-way, or a two-way highway divided by a centerline this field will be blank. If the Route is divided by a curb or barrier only the most restrictive clearance for the SB-WB lanes will be input in this field (In this case the Vert. Clearance NB-EB field will filled out for the NB-EB lanes). If the On/Under code is anything other than '1' the data in this field refers to clearances from roadways under the bridge to the nearest vertical obstruction in the SB-WB lanes. Exception is when the route is not divided then the most restrictive vertical mesaurement is taken on the entire roadway (NB-EB, SB-WB).Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
HORIZONTAL_CLR_RD1_FEET
-
The horizontal clearance for the inventory route on the structure. The clearance should be the available clearance measured between the restrictive features as curbs, rails, walls, or other structural features limiting the roadway (surface and shoulders). Measured in Feet, truncated to a tenth of a foot. If the Route is a one-way, or a two-way highway divided by a centerline the most restrictive horizontal clearance is calculated for both lanes and put in this field. If the Route is divided by a curb or barrier only the most restrictive horizontal clearance for the NB-EB lanes will be put in this field (In this case the Horiz. Clearance SB-WB field will filled out for the SB-WB lanes). If the On/Under Code is anything other than '1' the data in this field refers to horizontal clearances for roadways under the bridge. This is the measure between obstructions under the bridge in the NB-WB lanes. Exception is when the route is not divided, then the most restrictive measurement is taken between obstructions on the entire roadway (NB-EB, SB-WB).Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526
HORIZONT_CLR_RD2_FEET
-
The horizontal clearance for the inventory route on the structure. The clearance should be the available clearance measured between the restrictive features €“ curbs, rails, walls, or other structural features limiting the roadway (surface and shoulders). Measured in Feet, truncated to a tenth of a foot. If the Route is a one-way, or a two-way highway divided by a centerline the most restrictive horizontal clearance is calculated for both lanes and put in this field. If the Route is divided by a curb or barrier only the most restrictive horizontal clearance for the SB-WB lanes will be input in this field (In this case the Horiz. Clearance NB-EB field will filled out for the NB-EB lanes). If the On/Under Code is anything other than '1' the data in this field refers to horizontal clearances from roadways under the bridge. This is the measure between obstructions under the bridge in the SB-EB lanes. Exception is when the route is not divided then the most restrictive measurement is taken between obstructions on the entire roadway.Find Chapter D - https://edocs-public.dot.state.mn.us/edocs_public/DMResultSet/download?docId=8726526

Section 6: Distribution

Publisher: Minnesota Department of Transportation

Publication Date: 2022-08-23

Contact Person Information: Joe Russella, Bridge inventory Management Unit
Minnesota Department of Transportation
3485 Hadley Ave.
Oakdale, MN  55128
Phone: 651-366-4539
Fax: 0
Email: joe.russella@state.mn.us

Distributor's Data Set Identifier:

Distribution Liability: The State of Minnesota makes no representations or warranties expressed or implied, with respect to the reuse of the data provided herewith regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, or reliability of this data for any purpose. The user accepts the data ''as is.'' The State of Minnesota assumes no responsibility for loss or damage incurred as a result of any user's reliance on this data. All maps and other material provided herein are protected by copyright. Permission is granted to copy and use the materials herein.

Ordering Instructions: The data may be requested from the Contact person listed in the Distribution Contact.

Online Linkage: None available

Section 7: Metadata Reference

Metadata Date: 2022-08-23

Contact Person Information: Kyle House, Research Analyst Intermediate
Minnesota Department of Transportation
395 John Ireland Blvd.
Saint Paul, MN  55155
Phone: 651-366-3873
Fax: 651-366-3886
Email: linearreferencingsystem.admin.dot@state.mn.us

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2



This page last updated: 2022-08-23
Go back to top

Created with MGMG stylesheet version 2017.04.25.1