US Bridges

SH21; SH71 Wbfr over Gills Branch

Good

Bastrop County, Texas · 0.36 S of SH 150 · Structure no. 140110026505138

Built
2023
2 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
2,132
2022 count
Owner
State
State Highway Agency

About this bridge

SH21; SH71 Wbfr over Gills Branch is a prestressed concrete stringer/multi-beam or girder carrying SH21; SH71 Wbfr over Gills Branch in Bastrop County, Texas. It was built in 2023, so it is 2 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,132 vehicles a day, roughly 4% of them trucks, projected to reach 2,985 by 2042. The structure is 80 ft (24.4 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSH21; SH71 Wbfr
CrossesGills Branch
Location0.36 S of SH 150
RouteState Highway 71
CountyBastrop County
StateTexas
Coordinates30.10537, -97.31278
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal 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 spans1
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span80 ft (24.4 m)
Deck width83 ft (25.3 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,132 (2022)
Projected traffic2,985 by 2042
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byOther State 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 SH21; SH71 Wbfr over Gills Branch built?

It was built in 2023, making it 2 years old in 2025.

What condition is SH21; SH71 Wbfr over Gills Branch 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 June 2023.

How much traffic does SH21; SH71 Wbfr over Gills Branch carry?

About 2,132 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SH21; SH71 Wbfr over Gills Branch?

The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 83 ft wide.

Who owns SH21; SH71 Wbfr over Gills Branch?

It is owned by the State Highway Agency and maintained by the Other State Agency.