US Bridges

Sylvatus HGWY/100 over Rock Creek

FairPosted for load

Carroll County, Virginia · 6.88-RTE221 1.24-WYTHE CO · Structure no. 000000000004609

Built
1947
78 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
45 ft
2 main spans
Daily traffic
3,613
2022 count
Owner
State
State Highway Agency

About this bridge

Sylvatus HGWY/100 over Rock Creek is a concrete slab carrying Sylvatus HGWY/100 over Rock Creek in Carroll County, Virginia. It was built in 1947, so it is 78 years old, older than the Virginia average of 50.7 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. Its operating status is: posted for load restriction.

It carries about 3,613 vehicles a day, projected to reach 3,841 by 2042. The structure is 45 ft (13.7 m) long and 56 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesSylvatus HGWY/100
CrossesRock Creek
Location6.88-RTE221 1.24-WYTHE CO
RouteState Highway 100
CountyCarroll County
StateVirginia
Coordinates36.85495, -80.76308
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length45 ft (13.7 m)
Longest span23 ft (6.9 m)
Deck width56 ft (17 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,613 (2022)
Projected traffic3,841 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$261.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sylvatus HGWY/100 over Rock Creek built?

It was built in 1947, making it 78 years old in 2025.

What condition is Sylvatus HGWY/100 over Rock Creek 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 September 2024.

How much traffic does Sylvatus HGWY/100 over Rock Creek carry?

About 3,613 vehicles per day (2022 count).

How long is Sylvatus HGWY/100 over Rock Creek?

The structure is 45 ft (13.7 m) long with a longest span of 23 ft (6.9 m) and a deck 56 ft wide.

Who owns Sylvatus HGWY/100 over Rock Creek?

It is owned by the State Highway Agency.