US Bridges

Floyd Hwy. S / 221 over Mira Fork

Good

Floyd County, Virginia · 1.17 Car. Co; 0.04 Rt 761 · Structure no. 000000000029548

Built
2019
6 years old
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
1,871
2022 count
Owner
State
State Highway Agency

About this bridge

Floyd Hwy. S / 221 over Mira Fork is a prestressed concrete slab carrying Floyd Hwy. S / 221 over Mira Fork in Floyd County, Virginia. It was built in 2019, so it is 6 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,871 vehicles a day, roughly 2% of them trucks, projected to reach 2,086 by 2045. The structure is 56 ft (17.1 m) long and 44 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesFloyd Hwy. S / 221
CrossesMira Fork
Location1.17 Car. Co; 0.04 Rt 761
RouteU.S. Route 221
CountyFloyd County
StateVirginia
Coordinates36.84232, -80.54726
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length56 ft (17.1 m)
Longest span50 ft (15.2 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,871 (2022)
Projected traffic2,086 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

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 Floyd Hwy. S / 221 over Mira Fork built?

It was built in 2019, making it 6 years old in 2025.

What condition is Floyd Hwy. S / 221 over Mira Fork in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Floyd Hwy. S / 221 over Mira Fork carry?

About 1,871 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Floyd Hwy. S / 221 over Mira Fork?

The structure is 56 ft (17.1 m) long with a longest span of 50 ft (15.2 m) and a deck 44 ft wide.

Who owns Floyd Hwy. S / 221 over Mira Fork?

It is owned by the State Highway Agency.