US Bridges

SH121 Sbl over Minnis Drive

Good

Tarrant County, Texas · 0.75 Me NE of Carson Road · Structure no. 022200036303039

Built
1970
55 years old
Condition
Good
inspected May 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
3 main spans
Daily traffic
48,205
2023 count
Owner
State
State Highway Agency

About this bridge

SH121 Sbl over Minnis Drive is a prestressed concrete stringer/multi-beam or girder carrying SH121 Sbl over Minnis Drive in Tarrant County, Texas. It was built in 1970, so it is 55 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 48,205 vehicles a day, roughly 6% of them trucks, projected to reach 85,929 by 2040. The structure is 200 ft (61 m) long and 58 ft wide.

CarriesSH121 Sbl
CrossesMinnis Drive
Location0.75 Me NE of Carson Road
RouteState Highway 121
StateTexas
Coordinates32.79227, -97.24435
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length200 ft (61 m)
Longest span70 ft (21.3 m)
Deck width58 ft (17.7 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,205 (2023)
Projected traffic85,929 by 2040
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH121 Sbl over Minnis Drive built?

It was built in 1970, making it 55 years old in 2025.

What condition is SH121 Sbl over Minnis Drive in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2022.

How much traffic does SH121 Sbl over Minnis Drive carry?

About 48,205 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH121 Sbl over Minnis Drive?

The structure is 200 ft (61 m) long with a longest span of 70 ft (21.3 m) and a deck 58 ft wide.

Who owns SH121 Sbl over Minnis Drive?

It is owned by the State Highway Agency.