US Bridges

Coal Hollow RD/705 over Slate Branch

FairPosted for load

Montgomery County, Virginia · 0.84-RT619; 0.75-RT114 · Structure no. 000000000012312

Built
1932
93 years old, rebuilt 2004
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
2 main spans
Daily traffic
108
2020 count
Owner
State
State Highway Agency

About this bridge

Coal Hollow RD/705 over Slate Branch is a steel stringer/multi-beam or girder carrying Coal Hollow RD/705 over Slate Branch in Montgomery County, Virginia. It was built in 1932 and reconstructed in 2004, so it is 93 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 6 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 108 vehicles a day, projected to reach 162 by 2042. The structure is 45 ft (13.6 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCoal Hollow RD/705
CrossesSlate Branch
Location0.84-RT619; 0.75-RT114
RouteCounty Highway 705
CountyMontgomery County
StateVirginia
Coordinates37.1791, -80.498
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length45 ft (13.6 m)
Longest span30 ft (9 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108 (2020)
Projected traffic162 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$137.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Coal Hollow RD/705 over Slate Branch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2004.

What condition is Coal Hollow RD/705 over Slate Branch 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 Coal Hollow RD/705 over Slate Branch carry?

About 108 vehicles per day (2020 count).

How long is Coal Hollow RD/705 over Slate Branch?

The structure is 45 ft (13.6 m) long with a longest span of 30 ft (9 m) and a deck 18 ft wide.

Who owns Coal Hollow RD/705 over Slate Branch?

It is owned by the State Highway Agency.