US Bridges

Mines RD over San Ambrosia Creek

Good

Webb County, Texas · 28.3 MI N of End FM 1472 · Structure no. 222400AA0179100

Built
2016
9 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
101 ft
7 main spans
Daily traffic
591
2023 count
Owner
County
County Highway Agency

About this bridge

Mines RD over San Ambrosia Creek is a concrete culvert carrying Mines RD over San Ambrosia Creek in Webb County, Texas. It was built in 2016, so it is 9 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 591 vehicles a day, projected to reach 150 by 2038. The structure is 101 ft (30.8 m) long and 32 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesMines RD
CrossesSan Ambrosia Creek
Location28.3 MI N of End FM 1472
RouteCounty Highway 350
StateTexas
Coordinates28.18894, -100.09286
Functional classRural Local

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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length101 ft (30.8 m)
Longest span12 ft (3.7 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic591 (2023)
Projected traffic150 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mines RD over San Ambrosia Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Mines RD over San Ambrosia 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 September 2024.

How much traffic does Mines RD over San Ambrosia Creek carry?

About 591 vehicles per day (2023 count).

How long is Mines RD over San Ambrosia Creek?

The structure is 101 ft (30.8 m) long with a longest span of 12 ft (3.7 m) and a deck 32 ft wide.

Who owns Mines RD over San Ambrosia Creek?

It is owned by the County Highway Agency.