US Bridges

US 90 Mainlanes over Potranco Creek

Fair

Bexar County, Texas · 1.4 MI W of Loop 1604 · Structure no. 150150002407079

Built
1940
85 years old, rebuilt 1971
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
108 ft
7 main spans
Daily traffic
53,929
2022 count
Owner
State
State Highway Agency

About this bridge

US 90 Mainlanes over Potranco Creek is a concrete culvert carrying US 90 Mainlanes over Potranco Creek in Bexar County, Texas. It was built in 1940 and reconstructed in 1971, so it is 85 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 53,929 vehicles a day, roughly 8% of them trucks, projected to reach 75,501 by 2042. The structure is 108 ft (32.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 90 Mainlanes
CrossesPotranco Creek
Location1.4 MI W of Loop 1604
RouteU.S. Route 90
CountyBexar County
StateTexas
Coordinates29.37696, -98.72462
Functional classUrban Other Principal 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: 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 rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadH 15
Structure length108 ft (32.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,929 (2022)
Projected traffic75,501 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 US 90 Mainlanes over Potranco Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1971.

What condition is US 90 Mainlanes over Potranco 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 May 2024.

How much traffic does US 90 Mainlanes over Potranco Creek carry?

About 53,929 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is US 90 Mainlanes over Potranco Creek?

The structure is 108 ft (32.9 m) long with a longest span of 10 ft (3 m).

Who owns US 90 Mainlanes over Potranco Creek?

It is owned by the State Highway Agency.