US Bridges

650 W over SR-177

Good

Davis County, Utah · 650W over SR 177 · Structure no. 0C1075

Built
2023
2 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
170 ft
2 main spans
Daily traffic
1,000
2023 count
Owner
State
State Highway Agency

About this bridge

650 W over SR-177 is a steel continuous stringer/multi-beam or girder carrying 650 W over SR-177 in Davis County, Utah. It was built in 2023, so it is 2 years old, younger than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,000 vehicles a day, projected to reach 4,000 by 2043. The structure is 170 ft (51.8 m) long and 59 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
Carries650 W
CrossesSR-177
Location650W over SR 177
RouteCity Street 1431
CountyDavis County
StateUtah
Coordinates40.962, -111.901
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length170 ft (51.8 m)
Longest span92 ft (27.9 m)
Deck width59 ft (17.9 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic4,000 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed123.7 mi (199 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 650 W over SR-177 built?

It was built in 2023, making it 2 years old in 2025.

What condition is 650 W over SR-177 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does 650 W over SR-177 carry?

About 1,000 vehicles per day (2023 count).

How long is 650 W over SR-177?

The structure is 170 ft (51.8 m) long with a longest span of 92 ft (27.9 m) and a deck 59 ft wide.

Who owns 650 W over SR-177?

It is owned by the State Highway Agency.