US Bridges

SR 4025 over Hemlock Hollow Run

Fair

Potter County, Pennsylvania · Oswayo · Structure no. 000000000030433

Built
1960
65 years old, rebuilt 2019
Condition
Fair
inspected July 2023
Type
Channel Beam
Concrete
Length
27 ft
1 main span
Daily traffic
79
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4025 over Hemlock Hollow Run is a concrete channel beam carrying SR 4025 over Hemlock Hollow Run in Potter County, Pennsylvania. It was built in 1960 and reconstructed in 2019, so it is 65 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 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 79 vehicles a day, roughly 20% of them trucks, projected to reach 59 by 2043. The structure is 27 ft (8.2 m) long and 35 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesSR 4025
CrossesHemlock Hollow Run
LocationOswayo
RouteState Highway 0
CountyPotter County
StatePennsylvania
Coordinates41.92678, -78.00437
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating96 US tons
Inventory rating58 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (2024)
Projected traffic59 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$393,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4025 over Hemlock Hollow Run built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2019.

What condition is SR 4025 over Hemlock Hollow 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 July 2023.

How much traffic does SR 4025 over Hemlock Hollow Run carry?

About 79 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is SR 4025 over Hemlock Hollow Run?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 35 ft wide.

Who owns SR 4025 over Hemlock Hollow Run?

It is owned by the State Highway Agency.