US Bridges

Main Ave over IH 35 Lower Level

Good

Bexar County, Texas · 1.00 MI W of IH 37 · Structure no. 150150001710096

Built
1954
71 years old, rebuilt 1993
Condition
Good
inspected June 2024
Type
Frame
Concrete
Length
99 ft
2 main spans
Daily traffic
6,780
2022 count
Owner
State
State Highway Agency

About this bridge

Main Ave over IH 35 Lower Level is a concrete frame carrying Main Ave over IH 35 Lower Level in Bexar County, Texas. It was built in 1954 and reconstructed in 1993, so it is 71 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 6,780 vehicles a day, roughly 3% of them trucks, projected to reach 9,492 by 2042. The structure is 99 ft (30.2 m) long and 72 ft wide.

Location

Open in Google Maps
CarriesMain Ave
CrossesIH 35 Lower Level
Location1.00 MI W of IH 37
RouteCity Street 1515
CountyBexar County
StateTexas
Coordinates29.43583, -98.49407
Functional classUrban Other Principal Arterial

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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span43 ft (13.1 m)
Deck width72 ft (21.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deck19 ft (5.7 m)

Traffic and service

Average daily traffic6,780 (2022)
Projected traffic9,492 by 2042
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Main Ave over IH 35 Lower Level built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1993.

What condition is Main Ave over IH 35 Lower Level 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 Main Ave over IH 35 Lower Level carry?

About 6,780 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Main Ave over IH 35 Lower Level?

The structure is 99 ft (30.2 m) long with a longest span of 43 ft (13.1 m) and a deck 72 ft wide.

Who owns Main Ave over IH 35 Lower Level?

It is owned by the State Highway Agency.