US Bridges

Msas 172 over I 494

Fair

Hennepin County, Minnesota · 1.9 MI S of JCT TH 55 · Structure no. 27654

Built
1984
41 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
273 ft
2 main spans
Daily traffic
12,400
2017 count
Owner
State
State Highway Agency

About this bridge

Msas 172 over I 494 is a steel continuous stringer/multi-beam or girder carrying Msas 172 over I 494 in Hennepin County, Minnesota. It was built in 1984, so it is 41 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 12,400 vehicles a day, projected to reach 12,400 by 2039. The structure is 273 ft (83.1 m) long and 107 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMsas 172
CrossesI 494
Location1.9 MI S of JCT TH 55
RouteCity Street 172
CountyHennepin County
StateMinnesota
Coordinates44.98344, -93.45987
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
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 rating79.1 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length273 ft (83.1 m)
Longest span133 ft (40.5 m)
Deck width107 ft (32.5 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,400 (2017)
Projected traffic12,400 by 2039
Trucks—
Lanes on structure6
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 Msas 172 over I 494 built?

It was built in 1984, making it 41 years old in 2025.

What condition is Msas 172 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 June 2024.

How much traffic does Msas 172 over I 494 carry?

About 12,400 vehicles per day (2017 count).

How long is Msas 172 over I 494?

The structure is 273 ft (83.1 m) long with a longest span of 133 ft (40.5 m) and a deck 107 ft wide.

Who owns Msas 172 over I 494?

It is owned by the State Highway Agency.