US Bridges

SH121 SB Frontage over Dart/Cottonwood Branch

Fair

Tarrant County, Texas · 0.6 MI N of SH 114 · Structure no. 022200036401636

Built
2011
14 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,310 ft
5 main spans
Daily traffic
6,150
2010 count
Owner
State
State Highway Agency

About this bridge

SH121 SB Frontage over Dart/Cottonwood Branch is a prestressed concrete stringer/multi-beam or girder carrying SH121 SB Frontage over Dart/Cottonwood Branch in Tarrant County, Texas. It was built in 2011, so it is 14 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 6,150 vehicles a day, projected to reach 6,200 by 2030. The structure is 1,310 ft (399.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH121 SB Frontage
CrossesDart/Cottonwood Branch
Location0.6 MI N of SH 114
RouteState Highway 121
CountyTarrant County
StateTexas
Coordinates32.94298, -97.04162
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
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior 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
DeckConcrete, cast-in-place
Main spans5 (+7 approach)
Design loadHL 93
Structure length1,310 ft (399.4 m)
Longest span150 ft (45.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,150 (2010)
Projected traffic6,200 by 2030
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH121 SB Frontage over Dart/Cottonwood Branch built?

It was built in 2011, making it 14 years old in 2025.

What condition is SH121 SB Frontage over Dart/Cottonwood Branch 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 SH121 SB Frontage over Dart/Cottonwood Branch carry?

About 6,150 vehicles per day (2010 count).

How long is SH121 SB Frontage over Dart/Cottonwood Branch?

The structure is 1,310 ft (399.4 m) long with a longest span of 150 ft (45.7 m) and a deck 42 ft wide.

Who owns SH121 SB Frontage over Dart/Cottonwood Branch?

It is owned by the State Highway Agency.