US Bridges

IH 35 SB over Loop 340

Good

McLennan County, Texas · 1.5 MI NE of US 84 · Structure no. 091610001501318

Built
1972
53 years old, rebuilt 2021
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
320 ft
4 main spans
Daily traffic
47,401
2017 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB over Loop 340 is a prestressed concrete stringer/multi-beam or girder carrying IH 35 SB over Loop 340 in McLennan County, Texas. It was built in 1972 and reconstructed in 2021, 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 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 47,401 vehicles a day, roughly 31% of them trucks, projected to reach 112,390 by 2037. The structure is 320 ft (97.5 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 SB
CrossesLoop 340
Location1.5 MI NE of US 84
RouteInterstate 35
StateTexas
Coordinates31.60435, -97.10663
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 inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length320 ft (97.5 m)
Longest span80 ft (24.4 m)
Deck width56 ft (17 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,401 (2017)
Projected traffic112,390 by 2037
Trucks31%
Lanes on structure4
Traffic directionOne-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 SB over Loop 340 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2021.

What condition is IH 35 SB over Loop 340 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 February 2023.

How much traffic does IH 35 SB over Loop 340 carry?

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

How long is IH 35 SB over Loop 340?

The structure is 320 ft (97.5 m) long with a longest span of 80 ft (24.4 m) and a deck 56 ft wide.

Who owns IH 35 SB over Loop 340?

It is owned by the State Highway Agency.