US Bridges

Ramp B to I-77 NB over Rt Fk of Kanawha Twomile

Fair

Kanawha County, West Virginia · 0.03 MI N of CR 27 · Structure no. 00000000020A701

Built
1971
54 years old
Condition
Fair
inspected February 2023
Type
Culvert
Steel Continuous
Length
32 ft
2 main spans
Daily traffic
750
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp B to I-77 NB over Rt Fk of Kanawha Twomile is a steel continuous culvert carrying Ramp B to I-77 NB over Rt Fk of Kanawha Twomile in Kanawha County, West Virginia. It was built in 1971, so it is 54 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 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 750 vehicles a day, roughly 17% of them trucks, projected to reach 1,170 by 2040. The structure is 32 ft (9.8 m) long.

Location

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CarriesRamp B to I-77 NB
CrossesRt Fk of Kanawha Twomile
Location0.03 MI N of CR 27
RouteInterstate 77
CountyKanawha County
StateWest Virginia
Coordinates38.41353, -81.62994
Functional classRural 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialSteel Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2020)
Projected traffic1,170 by 2040
Trucks17%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ramp B to I-77 NB over Rt Fk of Kanawha Twomile built?

It was built in 1971, making it 54 years old in 2025.

What condition is Ramp B to I-77 NB over Rt Fk of Kanawha Twomile 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 Ramp B to I-77 NB over Rt Fk of Kanawha Twomile carry?

About 750 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Ramp B to I-77 NB over Rt Fk of Kanawha Twomile?

The structure is 32 ft (9.8 m) long with a longest span of 13 ft (3.9 m).

Who owns Ramp B to I-77 NB over Rt Fk of Kanawha Twomile?

It is owned by the State Highway Agency.