US Bridges

S Foster RD over Calaveras Lake

Good

Bexar County, Texas · 3.00 MI S of Sulphur Spg · Structure no. 150150AA0565005

Built
1973
52 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
182 ft
3 main spans
Daily traffic
1,508
2020 count
Owner
County
County Highway Agency

About this bridge

S Foster RD over Calaveras Lake is a prestressed concrete box beam or girders - multiple carrying S Foster RD over Calaveras Lake in Bexar County, Texas. It was built in 1973, so it is 52 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 1,508 vehicles a day, projected to reach 2,200 by 2027. The structure is 182 ft (55.5 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesS Foster RD
CrossesCalaveras Lake
Location3.00 MI S of Sulphur Spg
RouteCounty Highway 0
CountyBexar County
StateTexas
Coordinates29.32738, -98.35092
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length182 ft (55.5 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,508 (2020)
Projected traffic2,200 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 S Foster RD over Calaveras Lake built?

It was built in 1973, making it 52 years old in 2025.

What condition is S Foster RD over Calaveras Lake 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 August 2023.

How much traffic does S Foster RD over Calaveras Lake carry?

About 1,508 vehicles per day (2020 count).

How long is S Foster RD over Calaveras Lake?

The structure is 182 ft (55.5 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns S Foster RD over Calaveras Lake?

It is owned by the County Highway Agency.