US Bridges

Lp 1604 over US 90

Fair

Bexar County, Texas · 3.3 MI SW of IH 410 · Structure no. 150150002407154

Built
1971
54 years old
Condition
Fair
inspected May 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
426 ft
4 main spans
Daily traffic
8,400
2013 count
Owner
State
State Highway Agency

About this bridge

Lp 1604 over US 90 is a prestressed concrete stringer/multi-beam or girder carrying Lp 1604 over US 90 in Bexar County, Texas. It was built in 1971, so it is 54 years old, older 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 8,400 vehicles a day, roughly 7% of them trucks, projected to reach 11,770 by 2033. The structure is 426 ft (129.8 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLp 1604
CrossesUS 90
Location3.3 MI SW of IH 410
RouteState Highway 1604
CountyBexar County
StateTexas
Coordinates29.38179, -98.70094
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20
Structure length426 ft (129.8 m)
Longest span87 ft (26.5 m)
Deck width50 ft (15.3 m)
Roadway width48 ft (14.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,400 (2013)
Projected traffic11,770 by 2033
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 1604 over US 90 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Lp 1604 over US 90 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 May 2022.

How much traffic does Lp 1604 over US 90 carry?

About 8,400 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is Lp 1604 over US 90?

The structure is 426 ft (129.8 m) long with a longest span of 87 ft (26.5 m) and a deck 50 ft wide.

Who owns Lp 1604 over US 90?

It is owned by the State Highway Agency.