US Bridges

SH 21 over Branch of Elm Creek

Good

Hays County, Texas · 0.3 MI N of FM 2001 · Structure no. 141060047102112

Built
2010
15 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
14,158
2022 count
Owner
State
State Highway Agency

About this bridge

SH 21 over Branch of Elm Creek is a concrete culvert carrying SH 21 over Branch of Elm Creek in Hays County, Texas. It was built in 2010, so it is 15 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 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 14,158 vehicles a day, roughly 14% of them trucks, projected to reach 18,414 by 2039. The structure is 24 ft (7.4 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 21
CrossesBranch of Elm Creek
Location0.3 MI N of FM 2001
RouteState Highway 21
StateTexas
Coordinates30.01214, -97.72427
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span10 ft (3 m)
Deck width47 ft (14.3 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,158 (2022)
Projected traffic18,414 by 2039
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 21 over Branch of Elm Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is SH 21 over Branch of Elm Creek 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 2024.

How much traffic does SH 21 over Branch of Elm Creek carry?

About 14,158 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SH 21 over Branch of Elm Creek?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3 m) and a deck 47 ft wide.

Who owns SH 21 over Branch of Elm Creek?

It is owned by the State Highway Agency.