US Bridges

SR3012;SOCIAL Isle over Conococheague Creek

FairPosted for load

Franklin County, Pennsylvania · .75 Mi.E. of Turkey Foot · Structure no. 000000000017554

Built
1860
165 years old
Condition
Fair
inspected April 2024
Type
Arch - Deck
Masonry
Length
76 ft
2 main spans
Daily traffic
2,696
2024 count
Owner
State
State Highway Agency

About this bridge

SR3012;SOCIAL Isle over Conococheague Creek is a masonry arch - deck carrying SR3012;SOCIAL Isle over Conococheague Creek in Franklin County, Pennsylvania. It was built in 1860, so it is 165 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 2,696 vehicles a day, roughly 6% of them trucks, projected to reach 3,969 by 2032. The structure is 76 ft (23.2 m) long and 18 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR3012;SOCIAL Isle
CrossesConococheague Creek
Location.75 Mi.E. of Turkey Foot
RouteState Highway 0
CountyFranklin County
StatePennsylvania
Coordinates39.88511, -77.71286
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating15 US tons
Inventory rating10 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans2
Design loadH 20
Structure length76 ft (23.2 m)
Longest span35 ft (10.7 m)
Deck width18 ft (5.6 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,696 (2024)
Projected traffic3,969 by 2032
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$624,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR3012;SOCIAL Isle over Conococheague Creek built?

It was built in 1860, making it 165 years old in 2025.

What condition is SR3012;SOCIAL Isle over Conococheague 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 2024.

How much traffic does SR3012;SOCIAL Isle over Conococheague Creek carry?

About 2,696 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR3012;SOCIAL Isle over Conococheague Creek?

The structure is 76 ft (23.2 m) long with a longest span of 35 ft (10.7 m) and a deck 18 ft wide.

Who owns SR3012;SOCIAL Isle over Conococheague Creek?

It is owned by the State Highway Agency.