US Bridges

SH 121 NB FR over Little Fossil Creek

Fair

Tarrant County, Texas · NB Frtg RD W of Carson ST · Structure no. 022200036303020

Built
1967
58 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
133 ft
2 main spans
Daily traffic
1,810
2020 count
Owner
State
State Highway Agency

About this bridge

SH 121 NB FR over Little Fossil Creek is a concrete continuous slab carrying SH 121 NB FR over Little Fossil Creek in Tarrant County, Texas. It was built in 1967, so it is 58 years old, older 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 1,810 vehicles a day, roughly 8% of them trucks, projected to reach 2,110 by 2040. The structure is 133 ft (40.5 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSH 121 NB FR
CrossesLittle Fossil Creek
LocationNB Frtg RD W of Carson ST
RouteState Highway 121
CountyTarrant County
StateTexas
Coordinates32.78876, -97.25578
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length133 ft (40.5 m)
Longest span38 ft (11.6 m)
Deck width41 ft (12.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,810 (2020)
Projected traffic2,110 by 2040
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 121 NB FR over Little Fossil Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is SH 121 NB FR over Little Fossil Creek 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 May 2024.

How much traffic does SH 121 NB FR over Little Fossil Creek carry?

About 1,810 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is SH 121 NB FR over Little Fossil Creek?

The structure is 133 ft (40.5 m) long with a longest span of 38 ft (11.6 m) and a deck 41 ft wide.

Who owns SH 121 NB FR over Little Fossil Creek?

It is owned by the State Highway Agency.