US Bridges

Brooks ST I-77RAMP over I-77 Piedmont RD

Fair

Kanawha County, West Virginia · 1.52 MI E of US 60 · Structure no. 00000000020A413

Built
1975
50 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
526 ft
1 main span
Daily traffic
4,796
2017 count
Owner
State
State Highway Agency

About this bridge

Brooks ST I-77RAMP over I-77 Piedmont RD is a steel continuous box beam or girders - single or spread carrying Brooks ST I-77RAMP over I-77 Piedmont RD in Kanawha County, West Virginia. It was built in 1975, so it is 50 years old, older than the West Virginia average of 44.7 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 4,796 vehicles a day, roughly 17% of them trucks, projected to reach 5,276 by 2037. The structure is 526 ft (160.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesBrooks ST I-77RAMP
CrossesI-77 Piedmont RD
Location1.52 MI E of US 60
RouteInterstate 7700
CountyKanawha County
StateWest Virginia
Coordinates38.35195, -81.62351
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadHS 20 + Mod
Structure length526 ft (160.4 m)
Longest span174 ft (53 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,796 (2017)
Projected traffic5,276 by 2037
Trucks17%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Brooks ST I-77RAMP over I-77 Piedmont RD built?

It was built in 1975, making it 50 years old in 2025.

What condition is Brooks ST I-77RAMP over I-77 Piedmont RD 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 May 2024.

How much traffic does Brooks ST I-77RAMP over I-77 Piedmont RD carry?

About 4,796 vehicles per day (2017 count), of which roughly 17% are trucks.

How long is Brooks ST I-77RAMP over I-77 Piedmont RD?

The structure is 526 ft (160.4 m) long with a longest span of 174 ft (53 m) and a deck 26 ft wide.

Who owns Brooks ST I-77RAMP over I-77 Piedmont RD?

It is owned by the State Highway Agency.