US Bridges

Lp 1604 over Calaveras Creek

Fair

Bexar County, Texas · 0.60 MI NE of US 181 · Structure no. 150150225502020

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
350 ft
5 main spans
Daily traffic
7,449
2019 count
Owner
State
State Highway Agency

About this bridge

Lp 1604 over Calaveras Creek is a prestressed concrete stringer/multi-beam or girder carrying Lp 1604 over Calaveras Creek in Bexar County, Texas. It was built in 1981, so it is 44 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,449 vehicles a day, roughly 8% of them trucks, projected to reach 7,840 by 2033. The structure is 350 ft (106.7 m) long and 42 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesLp 1604
CrossesCalaveras Creek
Location0.60 MI NE of US 181
RouteState Highway 1604
CountyBexar County
StateTexas
Coordinates29.27395, -98.29924
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length350 ft (106.7 m)
Longest span70 ft (21.3 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,449 (2019)
Projected traffic7,840 by 2033
Trucks8%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lp 1604 over Calaveras Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Lp 1604 over Calaveras Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Lp 1604 over Calaveras Creek carry?

About 7,449 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Lp 1604 over Calaveras Creek?

The structure is 350 ft (106.7 m) long with a longest span of 70 ft (21.3 m) and a deck 42 ft wide.

Who owns Lp 1604 over Calaveras Creek?

It is owned by the State Highway Agency.