US Bridges

US 84 over US 77 Bus

Fair

McLennan County, Texas · 0.4 MI SW of IH 35 · Structure no. 091610005515380

Built
1955
70 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,567 ft
19 main spans
Daily traffic
11,299
2015 count
Owner
State
State Highway Agency

About this bridge

US 84 over US 77 Bus is a steel continuous stringer/multi-beam or girder carrying US 84 over US 77 Bus in McLennan County, Texas. It was built in 1955, so it is 70 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 5 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 11,299 vehicles a day, roughly 3% of them trucks, projected to reach 23,840 by 2033. The structure is 1,567 ft (477.6 m) long and 60 ft wide.

Location

Open in Google Maps
CarriesUS 84
CrossesUS 77 Bus
Location0.4 MI SW of IH 35
RouteU.S. Route 84
CountyMcLennan County
StateTexas
Coordinates31.58198, -97.1154
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans19 (+6 approach)
Design loadHS 20
Structure length1,567 ft (477.6 m)
Longest span110 ft (33.5 m)
Deck width60 ft (18.4 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,299 (2015)
Projected traffic23,840 by 2033
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$8.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 84 over US 77 Bus built?

It was built in 1955, making it 70 years old in 2025.

What condition is US 84 over US 77 Bus 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 January 2023.

How much traffic does US 84 over US 77 Bus carry?

About 11,299 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is US 84 over US 77 Bus?

The structure is 1,567 ft (477.6 m) long with a longest span of 110 ft (33.5 m) and a deck 60 ft wide.

Who owns US 84 over US 77 Bus?

It is owned by the State Highway Agency.