US Bridges

Route 340 over Big Run

Fair

Rockingham County, Virginia · 4.02 Rt 708 - 1.09 Rt 754 · Structure no. 000000000015891

Built
1941
84 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
85 ft
2 main spans
Daily traffic
3,921
2022 count
Owner
State
State Highway Agency

About this bridge

Route 340 over Big Run is a concrete stringer/multi-beam or girder carrying Route 340 over Big Run in Rockingham 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 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 3,921 vehicles a day, projected to reach 4,372 by 2045. The structure is 85 ft (25.9 m) long and 28 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesRoute 340
CrossesBig Run
Location4.02 Rt 708 - 1.09 Rt 754
RouteU.S. Route 340
CountyRockingham County
StateVirginia
Coordinates38.33259, -78.71806
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length85 ft (25.9 m)
Longest span43 ft (13 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,921 (2022)
Projected traffic4,372 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$365 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 340 over Big Run built?

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

What condition is Route 340 over Big Run 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 2023.

How much traffic does Route 340 over Big Run carry?

About 3,921 vehicles per day (2022 count).

How long is Route 340 over Big Run?

The structure is 85 ft (25.9 m) long with a longest span of 43 ft (13 m) and a deck 28 ft wide.

Who owns Route 340 over Big Run?

It is owned by the State Highway Agency.