US Bridges

SH 21 over Draw

Good

Hays County, Texas · 1.1 MI N of SH 80 · Structure no. 141060047102046

Built
1940
85 years old, rebuilt 1994
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
35 ft
6 main spans
Daily traffic
8,732
2020 count
Owner
State
State Highway Agency

About this bridge

SH 21 over Draw is a concrete culvert carrying SH 21 over Draw in Hays County, Texas. It was built in 1940 and reconstructed in 1994, so it is 85 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 8,732 vehicles a day, roughly 9% of them trucks, projected to reach 13,098 by 2039. The structure is 35 ft (10.7 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 21
CrossesDraw
Location1.1 MI N of SH 80
RouteState Highway 21
StateTexas
Coordinates29.88575, -97.89101
Functional classUrban Other Principal Arterial

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span5 ft (1.5 m)
Deck width86 ft (26.2 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,732 (2020)
Projected traffic13,098 by 2039
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$46,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 21 over Draw built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1994.

What condition is SH 21 over Draw 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 September 2024.

How much traffic does SH 21 over Draw carry?

About 8,732 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is SH 21 over Draw?

The structure is 35 ft (10.7 m) long with a longest span of 5 ft (1.5 m) and a deck 86 ft wide.

Who owns SH 21 over Draw?

It is owned by the State Highway Agency.