US Bridges

Lp 1604 over Drain

Good

Bexar County, Texas · 0.3 MI W of SH 16 · Structure no. 150150202002011

Built
1980
45 years old, rebuilt 2006
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
69 ft
7 main spans
Daily traffic
9,251
2023 count
Owner
State
State Highway Agency

About this bridge

Lp 1604 over Drain is a concrete culvert carrying Lp 1604 over Drain in Bexar County, Texas. It was built in 1980 and reconstructed in 2006, so it is 45 years old, older 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 9,251 vehicles a day, roughly 10% of them trucks, projected to reach 8,760 by 2033. The structure is 69 ft (21 m) long.

CarriesLp 1604
CrossesDrain
Location0.3 MI W of SH 16
RouteState Highway 1604
StateTexas
Coordinates29.23302, -98.58986
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 loadHS 20
Structure length69 ft (21 m)
Longest span9 ft (2.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,251 (2023)
Projected traffic8,760 by 2033
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lp 1604 over Drain built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2006.

What condition is Lp 1604 over Drain 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 August 2024.

How much traffic does Lp 1604 over Drain carry?

About 9,251 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Lp 1604 over Drain?

The structure is 69 ft (21 m) long with a longest span of 9 ft (2.8 m).

Who owns Lp 1604 over Drain?

It is owned by the State Highway Agency.