US Bridges

SH 97 over Chiltipin Creek

Good

Atascosa County, Texas · 3.80 MI SW of FM 140 · Structure no. 150070032806037

Built
1955
70 years old, rebuilt 1963
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
152 ft
5 main spans
Daily traffic
2,319
2020 count
Owner
State
State Highway Agency

About this bridge

SH 97 over Chiltipin Creek is a concrete stringer/multi-beam or girder carrying SH 97 over Chiltipin Creek in Atascosa County, Texas. It was built in 1955 and reconstructed in 1963, so it is 70 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 2,319 vehicles a day, roughly 31% of them trucks, projected to reach 4,620 by 2033. The structure is 152 ft (46.3 m) long and 38 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesSH 97
CrossesChiltipin Creek
Location3.80 MI SW of FM 140
RouteState Highway 97
CountyAtascosa County
StateTexas
Coordinates28.81766, -98.74412
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length152 ft (46.3 m)
Longest span30 ft (9.1 m)
Deck width38 ft (11.6 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,319 (2020)
Projected traffic4,620 by 2033
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 97 over Chiltipin Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1963.

What condition is SH 97 over Chiltipin 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 May 2024.

How much traffic does SH 97 over Chiltipin Creek carry?

About 2,319 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is SH 97 over Chiltipin Creek?

The structure is 152 ft (46.3 m) long with a longest span of 30 ft (9.1 m) and a deck 38 ft wide.

Who owns SH 97 over Chiltipin Creek?

It is owned by the State Highway Agency.