US Bridges

Csah 31 over I 494

Fair

Hennepin County, Minnesota · 1.0 MI W of JCT TH 35W · Structure no. 27408

Built
2013
12 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
251 ft
2 main spans
Daily traffic
5,282
2021 count
Owner
State
State Highway Agency

About this bridge

Csah 31 over I 494 is a prestressed concrete stringer/multi-beam or girder carrying Csah 31 over I 494 in Hennepin County, Minnesota. It was built in 2013, so it is 12 years old, younger 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 5,282 vehicles a day, projected to reach 7,800 by 2041. The structure is 251 ft (76.5 m) long and 104 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCsah 31
CrossesI 494
Location1.0 MI W of JCT TH 35W
RouteCounty Highway 31
CountyHennepin County
StateMinnesota
Coordinates44.86125, -93.31884
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length251 ft (76.5 m)
Longest span124 ft (37.9 m)
Deck width104 ft (31.8 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,282 (2021)
Projected traffic7,800 by 2041
Trucks0%
Lanes on structure5
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 Csah 31 over I 494 built?

It was built in 2013, making it 12 years old in 2025.

What condition is Csah 31 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 Csah 31 over I 494 carry?

About 5,282 vehicles per day (2021 count).

How long is Csah 31 over I 494?

The structure is 251 ft (76.5 m) long with a longest span of 124 ft (37.9 m) and a deck 104 ft wide.

Who owns Csah 31 over I 494?

It is owned by the State Highway Agency.