US Bridges

US 77 over SH 6 (lp 340)

Fair

McLennan County, Texas · 1.7 MI E of IH 35 · Structure no. 091610020901091

Built
1984
41 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
286 ft
2 main spans
Daily traffic
20,245
2020 count
Owner
State
State Highway Agency

About this bridge

US 77 over SH 6 (lp 340) is a prestressed concrete continuous stringer/multi-beam or girder carrying US 77 over SH 6 (lp 340) in McLennan County, Texas. It was built in 1984, so it is 41 years old, younger 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 20,245 vehicles a day, roughly 13% of them trucks, projected to reach 18,590 by 2033. The structure is 286 ft (87.2 m) long and 91 ft wide.

Location

Open in Google Maps
CarriesUS 77
CrossesSH 6 (lp 340)
Location1.7 MI E of IH 35
RouteU.S. Route 77
CountyMcLennan County
StateTexas
Coordinates31.49865, -97.12492
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length286 ft (87.2 m)
Longest span83 ft (25.3 m)
Deck width91 ft (27.7 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,245 (2020)
Projected traffic18,590 by 2033
Trucks13%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 77 over SH 6 (lp 340) built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 77 over SH 6 (lp 340) 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 US 77 over SH 6 (lp 340) carry?

About 20,245 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is US 77 over SH 6 (lp 340)?

The structure is 286 ft (87.2 m) long with a longest span of 83 ft (25.3 m) and a deck 91 ft wide.

Who owns US 77 over SH 6 (lp 340)?

It is owned by the State Highway Agency.