US Bridges

SR 6309 SB over Conrail

Fair

Luzerne County, Pennsylvania · Ashley Bo .7 M S SR 2005 · Structure no. 000000000024367

Built
1988
37 years old
Condition
Fair
inspected November 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
9,968
2024 count
Owner
State
State Highway Agency

About this bridge

SR 6309 SB over Conrail is a prestressed concrete box beam or girders - multiple carrying SR 6309 SB over Conrail in Luzerne County, Pennsylvania. It was built in 1988, so it is 37 years old, younger than the Pennsylvania average of 54.8 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 9,968 vehicles a day, roughly 8% of them trucks, projected to reach 10,925 by 2032. The structure is 67 ft (20.4 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 6309 SB
CrossesConrail
LocationAshley Bo .7 M S SR 2005
RouteState Highway 309B
CountyLuzerne County
StatePennsylvania
Coordinates41.21328, -75.88957
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating47 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span65 ft (19.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,968 (2024)
Projected traffic10,925 by 2032
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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$174,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 6309 SB over Conrail built?

It was built in 1988, making it 37 years old in 2025.

What condition is SR 6309 SB over Conrail 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 November 2022.

How much traffic does SR 6309 SB over Conrail carry?

About 9,968 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SR 6309 SB over Conrail?

The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.

Who owns SR 6309 SB over Conrail?

It is owned by the State Highway Agency.