US Bridges

SH 16 over Drain

Fair

Bexar County, Texas · 0.2 MI N of Lp 1604 · Structure no. 150150061301011

Built
1955
70 years old, rebuilt 1983
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
22 ft
4 main spans
Daily traffic
14,564
2020 count
Owner
State
State Highway Agency

About this bridge

SH 16 over Drain is a concrete culvert carrying SH 16 over Drain in Bexar County, Texas. It was built in 1955 and reconstructed in 1983, so it is 70 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 14,564 vehicles a day, roughly 8% of them trucks, projected to reach 22,900 by 2033. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSH 16
CrossesDrain
Location0.2 MI N of Lp 1604
RouteState Highway 16
StateTexas
Coordinates29.23639, -98.58395
Functional classUrban Other Principal Arterial

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 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 spans4
Design loadOther
Structure length22 ft (6.7 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,564 (2020)
Projected traffic22,900 by 2033
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 16 over Drain built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1983.

What condition is SH 16 over Drain 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 August 2024.

How much traffic does SH 16 over Drain carry?

About 14,564 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is SH 16 over Drain?

The structure is 22 ft (6.7 m) long with a longest span of 5 ft (1.5 m).

Who owns SH 16 over Drain?

It is owned by the State Highway Agency.