US Bridges

Rhododendrondr 850 over N Fork Blackwater River

Good

Franklin County, Virginia · 0.20 Rt 643; 0.40 End Mt · Structure no. 000000000024474

Built
1996
29 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
42 ft
1 main span
Daily traffic
88
2014 count
Owner
State
State Highway Agency

About this bridge

Rhododendrondr 850 over N Fork Blackwater River is a concrete slab carrying Rhododendrondr 850 over N Fork Blackwater River in Franklin County, Virginia. It was built in 1996, so it is 29 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 88 vehicles a day, projected to reach 128 by 2042. The structure is 42 ft (12.8 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRhododendrondr 850
CrossesN Fork Blackwater River
Location0.20 Rt 643; 0.40 End Mt
RouteCounty Highway 850
Coordinates37.08993, -80.04871
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating70 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length42 ft (12.8 m)
Longest span42 ft (12.8 m)
Deck width25 ft (7.5 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2014)
Projected traffic128 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Rhododendrondr 850 over N Fork Blackwater River built?

It was built in 1996, making it 29 years old in 2025.

What condition is Rhododendrondr 850 over N Fork Blackwater River 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 March 2024.

How much traffic does Rhododendrondr 850 over N Fork Blackwater River carry?

About 88 vehicles per day (2014 count).

How long is Rhododendrondr 850 over N Fork Blackwater River?

The structure is 42 ft (12.8 m) long with a longest span of 42 ft (12.8 m) and a deck 25 ft wide.

Who owns Rhododendrondr 850 over N Fork Blackwater River?

It is owned by the State Highway Agency.