US Bridges

IH 410 over SH 16 / Lp 421

Good

Bexar County, Texas · 3.6 MI SW of IH 10 · Structure no. 150150052104290

Built
2008
17 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
354 ft
4 main spans
Daily traffic
172,438
2020 count
Owner
State
State Highway Agency

About this bridge

IH 410 over SH 16 / Lp 421 is a prestressed concrete stringer/multi-beam or girder carrying IH 410 over SH 16 / Lp 421 in Bexar County, Texas. It was built in 2008, so it is 17 years old, younger 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 172,438 vehicles a day, roughly 4% of them trucks, projected to reach 251,240 by 2033. The structure is 354 ft (107.9 m) long and 132 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 410
CrossesSH 16 / Lp 421
Location3.6 MI SW of IH 10
RouteInterstate 410
CountyBexar County
StateTexas
Coordinates29.48267, -98.60024
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 spans4
Design loadHS 20
Structure length354 ft (107.9 m)
Longest span96 ft (29.3 m)
Deck width132 ft (40.2 m)
Roadway width127 ft (38.8 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic172,438 (2020)
Projected traffic251,240 by 2033
Trucks4%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH 410 over SH 16 / Lp 421 built?

It was built in 2008, making it 17 years old in 2025.

What condition is IH 410 over SH 16 / Lp 421 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 June 2024.

How much traffic does IH 410 over SH 16 / Lp 421 carry?

About 172,438 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is IH 410 over SH 16 / Lp 421?

The structure is 354 ft (107.9 m) long with a longest span of 96 ft (29.3 m) and a deck 132 ft wide.

Who owns IH 410 over SH 16 / Lp 421?

It is owned by the State Highway Agency.