US Bridges

Walnut & Cottage over Over Mill Run

PoorPosted for load

Crawford County, Pennsylvania · Walnut/N.Cottage Meadvill · Structure no. 000000000013537

Built
1916
109 years old, rebuilt 1976
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
1,500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Walnut & Cottage over Over Mill Run is a steel stringer/multi-beam or girder carrying Walnut & Cottage over Over Mill Run in Crawford County, Pennsylvania. It was built in 1916 and reconstructed in 1976, so it is 109 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,500 vehicles a day, roughly 1% of them trucks, projected to reach 1,875 by 2044. The structure is 28 ft (8.5 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWalnut & Cottage
CrossesOver Mill Run
LocationWalnut/N.Cottage Meadvill
RouteCity Street 7301
Coordinates41.63966, -80.15084
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26 US tons
Inventory rating15 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span23 ft (7 m)
Deck width36 ft (11 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2024)
Projected traffic1,875 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$295,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Walnut & Cottage over Over Mill Run built?

It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1976.

What condition is Walnut & Cottage over Over Mill Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Walnut & Cottage over Over Mill Run carry?

About 1,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Walnut & Cottage over Over Mill Run?

The structure is 28 ft (8.5 m) long with a longest span of 23 ft (7 m) and a deck 36 ft wide.

Who owns Walnut & Cottage over Over Mill Run?

It is owned by the City or Municipal Highway Agency.