US Bridges

IH 35 SB over Union Pacific RR

Fair

McLennan County, Texas · 0.2 MI N of Lp 340 N · Structure no. 091610001501320

Built
1972
53 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
210 ft
4 main spans
Daily traffic
47,401
2017 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB over Union Pacific RR is a concrete continuous slab carrying IH 35 SB over Union Pacific RR in McLennan County, Texas. It was built in 1972, so it is 53 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 47,401 vehicles a day, roughly 31% of them trucks, projected to reach 56,195 by 2037. The structure is 210 ft (64 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 35 SB
CrossesUnion Pacific RR
Location0.2 MI N of Lp 340 N
RouteInterstate 35
CountyMcLennan County
StateTexas
Coordinates31.60759, -97.10509
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 48 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 rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length210 ft (64 m)
Longest span60 ft (18.3 m)
Deck width87 ft (26.6 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,401 (2017)
Projected traffic56,195 by 2037
Trucks31%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 SB over Union Pacific RR built?

It was built in 1972, making it 53 years old in 2025.

What condition is IH 35 SB over Union Pacific RR 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 February 2023.

How much traffic does IH 35 SB over Union Pacific RR carry?

About 47,401 vehicles per day (2017 count), of which roughly 31% are trucks.

How long is IH 35 SB over Union Pacific RR?

The structure is 210 ft (64 m) long with a longest span of 60 ft (18.3 m) and a deck 87 ft wide.

Who owns IH 35 SB over Union Pacific RR?

It is owned by the State Highway Agency.