US Bridges

SH 16 / Spur 422 over Drain

Fair

Bexar County, Texas · 0.1 MI S of IH 410 · Structure no. 150150061301014

Built
1963
62 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
34 ft
4 main spans
Daily traffic
27,889
2022 count
Owner
State
State Highway Agency

About this bridge

SH 16 / Spur 422 over Drain is a concrete culvert carrying SH 16 / Spur 422 over Drain in Bexar County, Texas. It was built in 1963, so it is 62 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 27,889 vehicles a day, roughly 18% of them trucks, projected to reach 39,045 by 2042. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesSH 16 / Spur 422
CrossesDrain
Location0.1 MI S of IH 410
RouteState Highway 16
CountyBexar County
StateTexas
Coordinates29.31971, -98.55314
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 loadHS 20
Structure length34 ft (10.4 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,889 (2022)
Projected traffic39,045 by 2042
Trucks18%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 16 / Spur 422 over Drain built?

It was built in 1963, making it 62 years old in 2025.

What condition is SH 16 / Spur 422 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 July 2024.

How much traffic does SH 16 / Spur 422 over Drain carry?

About 27,889 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is SH 16 / Spur 422 over Drain?

The structure is 34 ft (10.4 m) long with a longest span of 7 ft (2.1 m).

Who owns SH 16 / Spur 422 over Drain?

It is owned by the State Highway Agency.