US Bridges

NB US 377 over Un Pacific Rr/Walnut Crk

Fair

Tarrant County, Texas · 0.3 MI N of IH 20 · Structure no. 022200008007059

Built
1982
43 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
325 ft
2 main spans
Daily traffic
7,259
2024 count
Owner
State
State Highway Agency

About this bridge

NB US 377 over Un Pacific Rr/Walnut Crk is a prestressed concrete stringer/multi-beam or girder carrying NB US 377 over Un Pacific Rr/Walnut Crk in Tarrant County, Texas. It was built in 1982, so it is 43 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 7,259 vehicles a day, roughly 3% of them trucks, projected to reach 9,676 by 2042. The structure is 325 ft (99.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNB US 377
CrossesUn Pacific Rr/Walnut Crk
Location0.3 MI N of IH 20
RouteU.S. Route 377
CountyTarrant County
StateTexas
Coordinates32.68902, -97.4578
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckCorrugated steel
Main spans2 (+1 approach)
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13.1 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,259 (2024)
Projected traffic9,676 by 2042
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NB US 377 over Un Pacific Rr/Walnut Crk built?

It was built in 1982, making it 43 years old in 2025.

What condition is NB US 377 over Un Pacific Rr/Walnut Crk 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 September 2023.

How much traffic does NB US 377 over Un Pacific Rr/Walnut Crk carry?

About 7,259 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is NB US 377 over Un Pacific Rr/Walnut Crk?

The structure is 325 ft (99.1 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns NB US 377 over Un Pacific Rr/Walnut Crk?

It is owned by the State Highway Agency.