US Bridges

Loop 1604 WB FR over IH 35

Good

Bexar County, Texas · IH 35/LP 1604 Inter · Structure no. 150150001607166

Built
1986
39 years old
Condition
Good
inspected May 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
370 ft
2 main spans
Daily traffic
26,770
2013 count
Owner
State
State Highway Agency

About this bridge

Loop 1604 WB FR over IH 35 is a prestressed concrete stringer/multi-beam or girder carrying Loop 1604 WB FR over IH 35 in Bexar County, Texas. It was built in 1986, so it is 39 years old, younger 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 26,770 vehicles a day, roughly 6% of them trucks, projected to reach 37,480 by 2033. The structure is 370 ft (112.8 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLoop 1604 WB FR
CrossesIH 35
LocationIH 35/LP 1604 Inter
RouteState Highway 1604
StateTexas
Coordinates29.56812, -98.33294
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadHS 20
Structure length370 ft (112.8 m)
Longest span80 ft (24.4 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,770 (2013)
Projected traffic37,480 by 2033
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Loop 1604 WB FR over IH 35 built?

It was built in 1986, making it 39 years old in 2025.

What condition is Loop 1604 WB FR over IH 35 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 May 2022.

How much traffic does Loop 1604 WB FR over IH 35 carry?

About 26,770 vehicles per day (2013 count), of which roughly 6% are trucks.

How long is Loop 1604 WB FR over IH 35?

The structure is 370 ft (112.8 m) long with a longest span of 80 ft (24.4 m) and a deck 38 ft wide.

Who owns Loop 1604 WB FR over IH 35?

It is owned by the State Highway Agency.