US Bridges

M 141 over I 494

Fair

Dakota County, Minnesota · 2.7 MI E of JCT TH 35E · Structure no. 19835

Built
1985
40 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
353 ft
2 main spans
Daily traffic
500
1985 count
Owner
State
State Highway Agency

About this bridge

M 141 over I 494 is a steel continuous stringer/multi-beam or girder carrying M 141 over I 494 in Dakota County, Minnesota. It was built in 1985, so it is 40 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 500 vehicles a day, projected to reach 500 by 2029. The structure is 353 ft (107.6 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM 141
CrossesI 494
Location2.7 MI E of JCT TH 35E
RouteCity Street 141
CountyDakota County
StateMinnesota
Coordinates44.86195, -93.09299
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.9 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length353 ft (107.6 m)
Longest span180 ft (55 m)
Deck width42 ft (12.9 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (1985)
Projected traffic500 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was M 141 over I 494 built?

It was built in 1985, making it 40 years old in 2025.

What condition is M 141 over I 494 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does M 141 over I 494 carry?

About 500 vehicles per day (1985 count).

How long is M 141 over I 494?

The structure is 353 ft (107.6 m) long with a longest span of 180 ft (55 m) and a deck 42 ft wide.

Who owns M 141 over I 494?

It is owned by the State Highway Agency.