US Bridges

Loop 1604 over Branch of Salado Creek

Fair

Bexar County, Texas · 1.46 MI E of FM 1535 · Structure no. 150150245202161

Built
1987
38 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
30 ft
3 main spans
Daily traffic
91,267
2022 count
Owner
State
State Highway Agency

About this bridge

Loop 1604 over Branch of Salado Creek is a steel culvert carrying Loop 1604 over Branch of Salado Creek in Bexar County, Texas. It was built in 1987, so it is 38 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 91,267 vehicles a day, roughly 5% of them trucks, projected to reach 139,270 by 2033. The structure is 30 ft (9.1 m) long.

CarriesLoop 1604
CrossesBranch of Salado Creek
Location1.46 MI E of FM 1535
RouteState Highway 1604
StateTexas
Coordinates29.60257, -98.53905
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91,267 (2022)
Projected traffic139,270 by 2033
Trucks5%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 Loop 1604 over Branch of Salado Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Loop 1604 over Branch of Salado 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 June 2024.

How much traffic does Loop 1604 over Branch of Salado Creek carry?

About 91,267 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Loop 1604 over Branch of Salado Creek?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m).

Who owns Loop 1604 over Branch of Salado Creek?

It is owned by the State Highway Agency.