US Bridges

Ammen Road / 799 over Branch of Mill Creek

Fair

Botetourt County, Virginia · 1.70 Rt 640N; .70 Rt 640S · Structure no. 000000000025430

Built
1998
27 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
72
2019 count
Owner
State
State Highway Agency

About this bridge

Ammen Road / 799 over Branch of Mill Creek is a concrete culvert carrying Ammen Road / 799 over Branch of Mill Creek in Botetourt County, Virginia. It was built in 1998, so it is 27 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 72 vehicles a day, projected to reach 86 by 2045. The structure is 20 ft (6.2 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAmmen Road / 799
CrossesBranch of Mill Creek
Location1.70 Rt 640N; .70 Rt 640S
RouteCounty Highway 799
CountyBotetourt County
StateVirginia
Coordinates37.45663, -79.85062
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72 (2019)
Projected traffic86 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$101 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ammen Road / 799 over Branch of Mill Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Ammen Road / 799 over Branch of Mill 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 April 2023.

How much traffic does Ammen Road / 799 over Branch of Mill Creek carry?

About 72 vehicles per day (2019 count).

How long is Ammen Road / 799 over Branch of Mill Creek?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 19 ft wide.

Who owns Ammen Road / 799 over Branch of Mill Creek?

It is owned by the State Highway Agency.