US Bridges

IH 35 Nbml over Walzem RD (fm 1976)

Fair

Bexar County, Texas · 5.46 MI S of SH 218 · Structure no. 150150001710185

Built
1962
63 years old, rebuilt 2016
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
202 ft
4 main spans
Daily traffic
77,292
2022 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbml over Walzem RD (fm 1976) is a steel continuous stringer/multi-beam or girder carrying IH 35 Nbml over Walzem RD (fm 1976) in Bexar County, Texas. It was built in 1962 and reconstructed in 2016, so it is 63 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 77,292 vehicles a day, roughly 12% of them trucks, projected to reach 108,209 by 2042. The structure is 202 ft (61.6 m) long and 74 ft wide.

Location

Open in Google Maps
CarriesIH 35 Nbml
CrossesWalzem RD (fm 1976)
Location5.46 MI S of SH 218
RouteInterstate 35
CountyBexar County
StateTexas
Coordinates29.51031, -98.39786
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length202 ft (61.6 m)
Longest span55 ft (16.8 m)
Deck width74 ft (22.5 m)
Roadway width71 ft (21.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77,292 (2022)
Projected traffic108,209 by 2042
Trucks12%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 Nbml over Walzem RD (fm 1976) built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2016.

What condition is IH 35 Nbml over Walzem RD (fm 1976) 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 Walzem RD (fm 1976) carry?

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

How long is IH 35 Nbml over Walzem RD (fm 1976)?

The structure is 202 ft (61.6 m) long with a longest span of 55 ft (16.8 m) and a deck 74 ft wide.

Who owns IH 35 Nbml over Walzem RD (fm 1976)?

It is owned by the State Highway Agency.