US Bridges

Patterson Mill RD over South River

Fair

Augusta County, Virginia · 0.01 Rt 826 - 0.04 Rt 825 · Structure no. 000000000002321

Built
1986
39 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
300 ft
6 main spans
Daily traffic
840
2022 count
Owner
State
State Highway Agency

About this bridge

Patterson Mill RD over South River is a concrete continuous slab carrying Patterson Mill RD over South River in Augusta County, Virginia. It was built in 1986, so it is 39 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 840 vehicles a day, roughly 1% of them trucks, projected to reach 1,226 by 2042. The structure is 300 ft (91.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPatterson Mill RD
CrossesSouth River
Location0.01 Rt 826 - 0.04 Rt 825
RouteCounty Highway 778
Coordinates38.21811, -78.83711
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating58 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length300 ft (91.4 m)
Longest span53 ft (16.3 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2022)
Projected traffic1,226 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Patterson Mill RD over South River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Patterson Mill RD over South River 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 August 2024.

How much traffic does Patterson Mill RD over South River carry?

About 840 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Patterson Mill RD over South River?

The structure is 300 ft (91.4 m) long with a longest span of 53 ft (16.3 m) and a deck 31 ft wide.

Who owns Patterson Mill RD over South River?

It is owned by the State Highway Agency.