US Bridges

Lp 1604 EB over Mprr

Fair

Bexar County, Texas · 6.90 MI SE of US 281 · Structure no. 150150245203020

Built
1967
58 years old, rebuilt 1988
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
270 ft
5 main spans
Daily traffic
55,564
2017 count
Owner
State
State Highway Agency

About this bridge

Lp 1604 EB over Mprr is a prestressed concrete stringer/multi-beam or girder carrying Lp 1604 EB over Mprr in Bexar County, Texas. It was built in 1967 and reconstructed in 1988, so it is 58 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 55,564 vehicles a day, roughly 9% of them trucks, projected to reach 52,720 by 2033. The structure is 270 ft (82.3 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLp 1604 EB
CrossesMprr
Location6.90 MI SE of US 281
RouteState Highway 1604
StateTexas
Coordinates29.59966, -98.35755
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 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 rating63.9 US tons
Inventory rating29 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length270 ft (82.3 m)
Longest span60 ft (18.3 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,564 (2017)
Projected traffic52,720 by 2033
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 EB over Mprr built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1988.

What condition is Lp 1604 EB over Mprr 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 Lp 1604 EB over Mprr carry?

About 55,564 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is Lp 1604 EB over Mprr?

The structure is 270 ft (82.3 m) long with a longest span of 60 ft (18.3 m) and a deck 47 ft wide.

Who owns Lp 1604 EB over Mprr?

It is owned by the State Highway Agency.