US Bridges

Liberty Street over Over Mill Run

Fair

Crawford County, Pennsylvania · Liberty ST Meadville · Structure no. 000000000013528

Built
1910
115 years old, rebuilt 1993
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
2,500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Liberty Street over Over Mill Run is a prestressed concrete slab carrying Liberty Street over Over Mill Run in Crawford County, Pennsylvania. It was built in 1910 and reconstructed in 1993, so it is 115 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 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 2,500 vehicles a day, roughly 1% of them trucks, projected to reach 3,125 by 2044. The structure is 26 ft (7.9 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLiberty Street
CrossesOver Mill Run
LocationLiberty ST Meadville
RouteCity Street 7301
CountyCrawford County
StatePennsylvania
Coordinates41.64038, -80.14686
Functional classUrban 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
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
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 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 rating93 US tons
Inventory rating56 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width50 ft (15.2 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2024)
Projected traffic3,125 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$167,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Liberty Street over Over Mill Run built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1993.

What condition is Liberty Street over Over Mill 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 2024.

How much traffic does Liberty Street over Over Mill Run carry?

About 2,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Liberty Street over Over Mill Run?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 50 ft wide.

Who owns Liberty Street over Over Mill Run?

It is owned by the City or Municipal Highway Agency.