US Bridges

Slate Mills Road over Branch Kilbys Creek

Fair

Rappahannock County, Virginia · 1.15 FR 231 & .35 to 603 · Structure no. 000000000014766

Built
1990
35 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
21 ft
3 main spans
Daily traffic
312
2022 count
Owner
State
State Highway Agency

About this bridge

Slate Mills Road over Branch Kilbys Creek is a steel culvert carrying Slate Mills Road over Branch Kilbys Creek in Rappahannock County, Virginia. It was built in 1990, so it is 35 years old, younger 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 312 vehicles a day, projected to reach 348 by 2045. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesSlate Mills Road
CrossesBranch Kilbys Creek
Location1.15 FR 231 & .35 to 603
RouteCounty Highway 707
CountyRappahannock County
StateVirginia
Coordinates38.54318, -78.2215
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic312 (2022)
Projected traffic348 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Slate Mills Road over Branch Kilbys Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Slate Mills Road over Branch Kilbys 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 May 2023.

How much traffic does Slate Mills Road over Branch Kilbys Creek carry?

About 312 vehicles per day (2022 count).

How long is Slate Mills Road over Branch Kilbys Creek?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m).

Who owns Slate Mills Road over Branch Kilbys Creek?

It is owned by the State Highway Agency.