US Bridges

IH 35 Nbml over IH 410 Conn & Randolph

Fair

Bexar County, Texas · 4.75 MI S of SH 218 · Structure no. 150150001710330

Built
1983
42 years old, rebuilt 2010
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
982 ft
4 main spans
Daily traffic
77,292
2022 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbml over IH 410 Conn & Randolph is a steel continuous stringer/multi-beam or girder carrying IH 35 Nbml over IH 410 Conn & Randolph in Bexar County, Texas. It was built in 1983 and reconstructed in 2010, so it is 42 years old, younger 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 77,292 vehicles a day, roughly 12% of them trucks, projected to reach 108,209 by 2042. The structure is 982 ft (299.3 m) long and 73 ft wide.

CarriesIH 35 Nbml
CrossesIH 410 Conn & Randolph
Location4.75 MI S of SH 218
RouteInterstate 35
StateTexas
Coordinates29.52243, -98.39427
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20
Structure length982 ft (299.3 m)
Longest span235 ft (71.6 m)
Deck width73 ft (22.3 m)
Roadway width71 ft (21.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77,292 (2022)
Projected traffic108,209 by 2042
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 35 Nbml over IH 410 Conn & Randolph built?

It was built in 1983, making it 42 years old in 2025. It was reconstructed in 2010.

What condition is IH 35 Nbml over IH 410 Conn & Randolph 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 June 2024.

How much traffic does IH 35 Nbml over IH 410 Conn & Randolph carry?

About 77,292 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is IH 35 Nbml over IH 410 Conn & Randolph?

The structure is 982 ft (299.3 m) long with a longest span of 235 ft (71.6 m) and a deck 73 ft wide.

Who owns IH 35 Nbml over IH 410 Conn & Randolph?

It is owned by the State Highway Agency.