US Bridges

SH121 Sbl over Dart/Fwwr Railroad

Fair

Tarrant County, Texas · 0.6 N of 121&114 Split · Structure no. 022200036401072

Built
1981
44 years old
Condition
Fair
inspected May 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
270 ft
4 main spans
Daily traffic
51,800
2013 count
Owner
State
State Highway Agency

About this bridge

SH121 Sbl over Dart/Fwwr Railroad is a prestressed concrete box beam or girders - multiple carrying SH121 Sbl over Dart/Fwwr Railroad in Tarrant County, Texas. It was built in 1981, so it is 44 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 51,800 vehicles a day, roughly 5% of them trucks, projected to reach 72,520 by 2033. The structure is 270 ft (82.3 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH121 Sbl
CrossesDart/Fwwr Railroad
Location0.6 N of 121&114 Split
RouteState Highway 121
CountyTarrant County
StateTexas
Coordinates32.94224, -97.04042
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length270 ft (82.3 m)
Longest span75 ft (22.9 m)
Deck width82 ft (25.1 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,800 (2013)
Projected traffic72,520 by 2033
Trucks5%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH121 Sbl over Dart/Fwwr Railroad built?

It was built in 1981, making it 44 years old in 2025.

What condition is SH121 Sbl over Dart/Fwwr Railroad 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 2022.

How much traffic does SH121 Sbl over Dart/Fwwr Railroad carry?

About 51,800 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is SH121 Sbl over Dart/Fwwr Railroad?

The structure is 270 ft (82.3 m) long with a longest span of 75 ft (22.9 m) and a deck 82 ft wide.

Who owns SH121 Sbl over Dart/Fwwr Railroad?

It is owned by the State Highway Agency.