US Bridges

FM 110 over SH 21; Harris Hill; Airp

Good

Hays County, Texas · 0.3 Miles South of SH 21 · Structure no. 141060041702003

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
2,538 ft
1 main span
Daily traffic
9,600
2015 count
Owner
State
State Highway Agency

About this bridge

FM 110 over SH 21; Harris Hill; Airp is a steel stringer/multi-beam or girder carrying FM 110 over SH 21; Harris Hill; Airp in Hays 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 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 9,600 vehicles a day, projected to reach 1 by 1900. The structure is 2,538 ft (773.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFM 110
CrossesSH 21; Harris Hill; Airp
Location0.3 Miles South of SH 21
RouteState Highway 110
CountyHays County
StateTexas
Coordinates29.88948, -97.88229
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+21 approach)
Design loadHL 93
Structure length2,538 ft (773.6 m)
Longest span186 ft (56.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,600 (2015)
Projected traffic1 by 1900
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 110 over SH 21; Harris Hill; Airp built?

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

What condition is FM 110 over SH 21; Harris Hill; Airp 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 December 2023.

How much traffic does FM 110 over SH 21; Harris Hill; Airp carry?

About 9,600 vehicles per day (2015 count).

How long is FM 110 over SH 21; Harris Hill; Airp?

The structure is 2,538 ft (773.6 m) long with a longest span of 186 ft (56.7 m) and a deck 42 ft wide.

Who owns FM 110 over SH 21; Harris Hill; Airp?

It is owned by the State Highway Agency.