US Bridges

T-701 Knoyle Road over French Creek West Branch

Fair

Erie County, Pennsylvania · 1/2 MI E of Phillipsburg · Structure no. 000000000016486

Built
1975
50 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
1 main span
Daily traffic
37
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-701 Knoyle Road over French Creek West Branch is a steel stringer/multi-beam or girder carrying T-701 Knoyle Road over French Creek West Branch in Erie County, Pennsylvania. It was built in 1975, so it is 50 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 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 37 vehicles a day, roughly 8% of them trucks, projected to reach 40 by 2033. The structure is 77 ft (23.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT-701 Knoyle Road
CrossesFrench Creek West Branch
Location1/2 MI E of Phillipsburg
RouteCity Street 0
Coordinates42.08161, -79.85053
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span74 ft (22.6 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2013)
Projected traffic40 by 2033
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-701 Knoyle Road over French Creek West Branch built?

It was built in 1975, making it 50 years old in 2025.

What condition is T-701 Knoyle Road over French Creek West Branch 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 T-701 Knoyle Road over French Creek West Branch carry?

About 37 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is T-701 Knoyle Road over French Creek West Branch?

The structure is 77 ft (23.5 m) long with a longest span of 74 ft (22.6 m) and a deck 24 ft wide.

Who owns T-701 Knoyle Road over French Creek West Branch?

It is owned by the Town or Township Highway Agency.