US Bridges

SH 21 WB over UP RR

Good

Burleson County, Texas · 1.8 MI SW of Brazos River · Structure no. 170260011603047

Built
1979
46 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
260 ft
3 main spans
Daily traffic
8,655
2019 count
Owner
State
State Highway Agency

About this bridge

SH 21 WB over UP RR is a prestressed concrete stringer/multi-beam or girder carrying SH 21 WB over UP RR in Burleson County, Texas. It was built in 1979, so it is 46 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 8,655 vehicles a day, roughly 20% of them trucks, projected to reach 8,830 by 2033. The structure is 260 ft (79.2 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSH 21 WB
CrossesUP RR
Location1.8 MI SW of Brazos River
RouteState Highway 21
StateTexas
Coordinates30.61133, -96.56105
Functional classRural Principal Arterial - Other

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 inspectionAugust 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 length260 ft (79.2 m)
Longest span95 ft (29 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,655 (2019)
Projected traffic8,830 by 2033
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 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 SH 21 WB over UP RR built?

It was built in 1979, making it 46 years old in 2025.

What condition is SH 21 WB over UP RR 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 August 2022.

How much traffic does SH 21 WB over UP RR carry?

About 8,655 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is SH 21 WB over UP RR?

The structure is 260 ft (79.2 m) long with a longest span of 95 ft (29 m) and a deck 42 ft wide.

Who owns SH 21 WB over UP RR?

It is owned by the State Highway Agency.