US Bridges

SH121NBFR & Conn B over Trib Big Bear Creek

Fair

Tarrant County, Texas · 0.5 MI S of 121&114 Split · Structure no. 022200036401073

Built
1983
42 years old, rebuilt 1986
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
23 ft
4 main spans
Daily traffic
152,000
2010 count
Owner
State
State Highway Agency

About this bridge

SH121NBFR & Conn B over Trib Big Bear Creek is a concrete culvert carrying SH121NBFR & Conn B over Trib Big Bear Creek in Tarrant County, Texas. It was built in 1983 and reconstructed in 1986, so it is 42 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 152,000 vehicles a day, roughly 4% of them trucks, projected to reach 241,700 by 2030. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH121NBFR & Conn B
CrossesTrib Big Bear Creek
Location0.5 MI S of 121&114 Split
RouteState Highway 121
StateTexas
Coordinates32.91701, -97.09261
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length23 ft (7 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic152,000 (2010)
Projected traffic241,700 by 2030
Trucks4%
Lanes on structure6
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 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 SH121NBFR & Conn B over Trib Big Bear Creek built?

It was built in 1983, making it 42 years old in 2025. It was reconstructed in 1986.

What condition is SH121NBFR & Conn B over Trib Big Bear 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 SH121NBFR & Conn B over Trib Big Bear Creek carry?

About 152,000 vehicles per day (2010 count), of which roughly 4% are trucks.

How long is SH121NBFR & Conn B over Trib Big Bear Creek?

The structure is 23 ft (7 m) long with a longest span of 5 ft (1.5 m).

Who owns SH121NBFR & Conn B over Trib Big Bear Creek?

It is owned by the State Highway Agency.