US Bridges

So Main St/Rte 8 over Mayo River

Poor

Patrick County, Virginia · 3.32-RTE103;0.54-RTE58 · Structure no. 000000000013191

Built
1941
84 years old
Condition
Poor
inspected March 2024
Type
Tee Beam
Concrete
Length
113 ft
3 main spans
Daily traffic
4,266
2022 count
Owner
State
State Highway Agency

About this bridge

So Main St/Rte 8 over Mayo River is a concrete tee beam carrying So Main St/Rte 8 over Mayo River in Patrick County, Virginia. It was built in 1941, so it is 84 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,266 vehicles a day, roughly 1% of them trucks, projected to reach 4,391 by 2045. The structure is 113 ft (34.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSo Main St/Rte 8
CrossesMayo River
Location3.32-RTE103;0.54-RTE58
RouteState Highway 8
CountyPatrick County
StateVirginia
Coordinates36.63546, -80.26924
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length113 ft (34.4 m)
Longest span48 ft (14.6 m)
Deck width31 ft (9.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,266 (2022)
Projected traffic4,391 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$652.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was So Main St/Rte 8 over Mayo River built?

It was built in 1941, making it 84 years old in 2025.

What condition is So Main St/Rte 8 over Mayo River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does So Main St/Rte 8 over Mayo River carry?

About 4,266 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is So Main St/Rte 8 over Mayo River?

The structure is 113 ft (34.4 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns So Main St/Rte 8 over Mayo River?

It is owned by the State Highway Agency.