US Bridges

LP1604 Conn (lp A) over IH 35

Fair

Bexar County, Texas · O.10 MI S of Loop 1604 · Structure no. 150150001607169

Built
1986
39 years old
Condition
Fair
inspected May 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
334 ft
2 main spans
Daily traffic
39,950
2011 count
Owner
State
State Highway Agency

About this bridge

LP1604 Conn (lp A) over IH 35 is a prestressed concrete stringer/multi-beam or girder carrying LP1604 Conn (lp A) 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 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 39,950 vehicles a day, roughly 4% of them trucks, projected to reach 78,100 by 2031. The structure is 334 ft (101.8 m) long and 38 ft wide.

Location

Open in Google Maps
CarriesLP1604 Conn (lp A)
CrossesIH 35
LocationO.10 MI S of Loop 1604
RouteState Highway 1604
CountyBexar County
StateTexas
Coordinates29.56686, -98.33442
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable 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 spans2 (+4 approach)
Design loadHS 20
Structure length334 ft (101.8 m)
Longest span75 ft (22.9 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,950 (2011)
Projected traffic78,100 by 2031
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LP1604 Conn (lp A) over IH 35 built?

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

What condition is LP1604 Conn (lp A) over IH 35 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 LP1604 Conn (lp A) over IH 35 carry?

About 39,950 vehicles per day (2011 count), of which roughly 4% are trucks.

How long is LP1604 Conn (lp A) over IH 35?

The structure is 334 ft (101.8 m) long with a longest span of 75 ft (22.9 m) and a deck 38 ft wide.

Who owns LP1604 Conn (lp A) over IH 35?

It is owned by the State Highway Agency.