US Bridges

Loop 340 over US 84

Good

McLennan County, Texas · 2.4 MI SE of IH 35 · Structure no. 091610016201084

Built
1990
35 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
305 ft
1 main span
Daily traffic
13,912
2017 count
Owner
State
State Highway Agency

About this bridge

Loop 340 over US 84 is a prestressed concrete continuous stringer/multi-beam or girder carrying Loop 340 over US 84 in McLennan County, Texas. It was built in 1990, so it is 35 years old, younger 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 13,912 vehicles a day, roughly 10% of them trucks, projected to reach 19,480 by 2037. The structure is 305 ft (93 m) long and 91 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLoop 340
CrossesUS 84
Location2.4 MI SE of IH 35
RouteState Highway 2418
StateTexas
Coordinates31.5988, -97.08903
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 inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length305 ft (93 m)
Longest span125 ft (38.1 m)
Deck width91 ft (27.6 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,912 (2017)
Projected traffic19,480 by 2037
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
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 Loop 340 over US 84 built?

It was built in 1990, making it 35 years old in 2025.

What condition is Loop 340 over US 84 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 January 2023.

How much traffic does Loop 340 over US 84 carry?

About 13,912 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Loop 340 over US 84?

The structure is 305 ft (93 m) long with a longest span of 125 ft (38.1 m) and a deck 91 ft wide.

Who owns Loop 340 over US 84?

It is owned by the State Highway Agency.