US Bridges

Entrance Road over Nine Mile Run

Fair

Potter County, Pennsylvania · Denton Hill State Park · Structure no. 000000000030495

Built
1970
55 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
23 ft
1 main span
Daily traffic
40
2024 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Entrance Road over Nine Mile Run is a steel culvert carrying Entrance Road over Nine Mile Run in Potter County, Pennsylvania. It was built in 1970, so it is 55 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 40 vehicles a day, projected to reach 50 by 2046. The structure is 23 ft (7 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesEntrance Road
CrossesNine Mile Run
LocationDenton Hill State Park
RouteState Lands Road 0
CountyPotter County
StatePennsylvania
Coordinates41.7778, -77.8278
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic50 by 2046
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Entrance Road over Nine Mile Run built?

It was built in 1970, making it 55 years old in 2025.

What condition is Entrance Road over Nine Mile 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 October 2024.

How much traffic does Entrance Road over Nine Mile Run carry?

About 40 vehicles per day (2024 count).

How long is Entrance Road over Nine Mile Run?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m).

Who owns Entrance Road over Nine Mile Run?

It is owned by the State Park, Forest, or Reservation Agency.