US Bridges

SH 80 over SH 21

Good

Hays County, Texas · 1.0 MI SE of IH 35 · Structure no. 141060047102085

Built
2004
21 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
222 ft
3 main spans
Daily traffic
40,149
2019 count
Owner
State
State Highway Agency

About this bridge

SH 80 over SH 21 is a prestressed concrete stringer/multi-beam or girder carrying SH 80 over SH 21 in Hays County, Texas. It was built in 2004, so it is 21 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 40,149 vehicles a day, roughly 6% of them trucks, projected to reach 48,179 by 2039. The structure is 222 ft (67.7 m) long and 70 ft wide.

CarriesSH 80
CrossesSH 21
Location1.0 MI SE of IH 35
RouteState Highway 80
StateTexas
Coordinates29.87711, -97.90608
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable 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 length222 ft (67.7 m)
Longest span78 ft (23.8 m)
Deck width70 ft (21.3 m)
Roadway width67 ft (20.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,149 (2019)
Projected traffic48,179 by 2039
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 80 over SH 21 built?

It was built in 2004, making it 21 years old in 2025.

What condition is SH 80 over SH 21 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 2022.

How much traffic does SH 80 over SH 21 carry?

About 40,149 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SH 80 over SH 21?

The structure is 222 ft (67.7 m) long with a longest span of 78 ft (23.8 m) and a deck 70 ft wide.

Who owns SH 80 over SH 21?

It is owned by the State Highway Agency.