US Bridges

Sillamon Road over Deep Run

Good

Fauquier County, Virginia · 1.0 FR 617S&2.85 to 617N · Structure no. 000000000007434

Built
1977
48 years old, rebuilt 2015
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
114 ft
3 main spans
Daily traffic
191
2022 count
Owner
State
State Highway Agency

About this bridge

Sillamon Road over Deep Run is a concrete slab carrying Sillamon Road over Deep Run in Fauquier County, Virginia. It was built in 1977 and reconstructed in 2015, so it is 48 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 191 vehicles a day, projected to reach 234 by 2045. The structure is 114 ft (34.7 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSillamon Road
CrossesDeep Run
Location1.0 FR 617S&2.85 to 617N
RouteCounty Highway 752
CountyFauquier County
StateVirginia
Coordinates38.4694, -77.63445
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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span39 ft (11.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic191 (2022)
Projected traffic234 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Sillamon Road over Deep Run built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2015.

What condition is Sillamon Road over Deep Run 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 October 2023.

How much traffic does Sillamon Road over Deep Run carry?

About 191 vehicles per day (2022 count).

How long is Sillamon Road over Deep Run?

The structure is 114 ft (34.7 m) long with a longest span of 39 ft (11.9 m) and a deck 25 ft wide.

Who owns Sillamon Road over Deep Run?

It is owned by the State Highway Agency.