US Bridges

US 84 over Brazos River

Fair

McLennan County, Texas · 3.5 MI NE of Lp 396 · Structure no. 091610005515046

Built
1951
74 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
912 ft
4 main spans
Daily traffic
27,134
2020 count
Owner
State
State Highway Agency

About this bridge

US 84 over Brazos River is a steel continuous stringer/multi-beam or girder carrying US 84 over Brazos River in McLennan County, Texas. It was built in 1951, so it is 74 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 27,134 vehicles a day, roughly 3% of them trucks, projected to reach 30,460 by 2037. The structure is 912 ft (278 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 84
CrossesBrazos River
Location3.5 MI NE of Lp 396
RouteU.S. Route 84
CountyMcLennan County
StateTexas
Coordinates31.56514, -97.13377
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+6 approach)
Design loadOther
Structure length912 ft (278 m)
Longest span150 ft (45.7 m)
Deck width66 ft (20.1 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,134 (2020)
Projected traffic30,460 by 2037
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 84 over Brazos River built?

It was built in 1951, making it 74 years old in 2025.

What condition is US 84 over Brazos River 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 April 2023.

How much traffic does US 84 over Brazos River carry?

About 27,134 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is US 84 over Brazos River?

The structure is 912 ft (278 m) long with a longest span of 150 ft (45.7 m) and a deck 66 ft wide.

Who owns US 84 over Brazos River?

It is owned by the State Highway Agency.