US Bridges

T-520 Quarry Road over Fiedler Run

Fair

Centre County, Pennsylvania · 1.2 Mi.South Int SR 45 · Structure no. 000000000040837

Built
1989
36 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
35
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-520 Quarry Road over Fiedler Run is a concrete culvert carrying T-520 Quarry Road over Fiedler Run in Centre County, Pennsylvania. It was built in 1989, so it is 36 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 35 vehicles a day, roughly 2% of them trucks, projected to reach 55 by 2045. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesT-520 Quarry Road
CrossesFiedler Run
Location1.2 Mi.South Int SR 45
RouteCity Street 0
CountyCentre County
StatePennsylvania
Coordinates40.88979, -77.39303
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic55 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-520 Quarry Road over Fiedler Run built?

It was built in 1989, making it 36 years old in 2025.

What condition is T-520 Quarry Road over Fiedler Run 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 June 2023.

How much traffic does T-520 Quarry Road over Fiedler Run carry?

About 35 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is T-520 Quarry Road over Fiedler Run?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 28 ft wide.

Who owns T-520 Quarry Road over Fiedler Run?

It is owned by the Town or Township Highway Agency.