US Bridges

SR 79 SB over Over SR 3020 & Elk Ck.

Fair

Erie County, Pennsylvania · Mckean Township · Structure no. 000000000015960

Built
1969
56 years old, rebuilt 1992
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
263 ft
4 main spans
Daily traffic
9,951
2024 count
Owner
State
State Highway Agency

About this bridge

SR 79 SB over Over SR 3020 & Elk Ck. is a prestressed concrete box beam or girders - multiple carrying SR 79 SB over Over SR 3020 & Elk Ck. in Erie County, Pennsylvania. It was built in 1969 and reconstructed in 1992, so it is 56 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.

It carries about 9,951 vehicles a day, roughly 12% of them trucks, projected to reach 4,907 by 2032. The structure is 263 ft (80.2 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR 79 SB
CrossesOver SR 3020 & Elk Ck.
LocationMckean Township
RouteInterstate 79
Coordinates41.99676, -80.16689
Functional classRural Principal Arterial - Interstate

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.
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length263 ft (80.2 m)
Longest span78 ft (23.8 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,951 (2024)
Projected traffic4,907 by 2032
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$129,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 79 SB over Over SR 3020 & Elk Ck. built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1992.

What condition is SR 79 SB over Over SR 3020 & Elk Ck. 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 2023.

How much traffic does SR 79 SB over Over SR 3020 & Elk Ck. carry?

About 9,951 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR 79 SB over Over SR 3020 & Elk Ck.?

The structure is 263 ft (80.2 m) long with a longest span of 78 ft (23.8 m) and a deck 35 ft wide.

Who owns SR 79 SB over Over SR 3020 & Elk Ck.?

It is owned by the State Highway Agency.