US Bridges

SR 20 Buffalo Road over Over Seven Mile Creek

Fair

Erie County, Pennsylvania · Harbor Creek Township · Structure no. 000000000039545

Built
1997
28 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
7,330
2024 count
Owner
State
State Highway Agency

About this bridge

SR 20 Buffalo Road over Over Seven Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 20 Buffalo Road over Over Seven Mile Creek in Erie County, Pennsylvania. It was built in 1997, so it is 28 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 7,330 vehicles a day, roughly 8% of them trucks, projected to reach 13,086 by 2032. The structure is 65 ft (19.8 m) long and 49 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 20 Buffalo Road
CrossesOver Seven Mile Creek
LocationHarbor Creek Township
RouteU.S. Route 20
CountyErie County
StatePennsylvania
Coordinates42.16599, -79.95418
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length65 ft (19.8 m)
Longest span59 ft (18 m)
Deck width49 ft (14.8 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,330 (2024)
Projected traffic13,086 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$64,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 20 Buffalo Road over Over Seven Mile Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is SR 20 Buffalo Road over Over Seven Mile 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 August 2023.

How much traffic does SR 20 Buffalo Road over Over Seven Mile Creek carry?

About 7,330 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SR 20 Buffalo Road over Over Seven Mile Creek?

The structure is 65 ft (19.8 m) long with a longest span of 59 ft (18 m) and a deck 49 ft wide.

Who owns SR 20 Buffalo Road over Over Seven Mile Creek?

It is owned by the State Highway Agency.