US Bridges

County Route 66 over Mill Creek

PoorPosted for load

Greenbrier County, West Virginia · 0.16 Miles W. of Wv 12 · Structure no. 00000000013A171

Built
1913
112 years old
Condition
Poor
inspected May 2024
Type
Arch - Deck
Concrete
Length
52 ft
1 main span
Daily traffic
70
2022 count
Owner
State
State Highway Agency

About this bridge

County Route 66 over Mill Creek is a concrete arch - deck carrying County Route 66 over Mill Creek in Greenbrier County, West Virginia. It was built in 1913, so it is 112 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 70 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2042. The structure is 52 ft (15.7 m) long and 16 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty Route 66
CrossesMill Creek
Location0.16 Miles W. of Wv 12
RouteCounty Highway 6600
Coordinates37.76174, -80.61022
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating31 US tons
Inventory rating13 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length52 ft (15.7 m)
Longest span50 ft (15.1 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic90 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$379,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Route 66 over Mill Creek built?

It was built in 1913, making it 112 years old in 2025.

What condition is County Route 66 over Mill Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does County Route 66 over Mill Creek carry?

About 70 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is County Route 66 over Mill Creek?

The structure is 52 ft (15.7 m) long with a longest span of 50 ft (15.1 m) and a deck 16 ft wide.

Who owns County Route 66 over Mill Creek?

It is owned by the State Highway Agency.