US Bridges

Black Road over French Creek Branch

Fair

Mercer County, Pennsylvania · 1/2MI NE of Snake Road · Structure no. 000000000026130

Built
1905
120 years old, rebuilt 2013
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
20
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Black Road over French Creek Branch is a steel stringer/multi-beam or girder carrying Black Road over French Creek Branch in Mercer County, Pennsylvania. It was built in 1905 and reconstructed in 2013, so it is 120 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 20 vehicles a day, roughly 4% of them trucks, projected to reach 30 by 2039. The structure is 25 ft (7.6 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBlack Road
CrossesFrench Creek Branch
Location1/2MI NE of Snake Road
RouteCity Street 7207
Coordinates41.48481, -80.03103
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating83 US tons
Inventory rating50 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length25 ft (7.6 m)
Longest span20 ft (6.1 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2019)
Projected traffic30 by 2039
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Black Road over French Creek Branch built?

It was built in 1905, making it 120 years old in 2025. It was reconstructed in 2013.

What condition is Black Road over French Creek Branch 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 August 2023.

How much traffic does Black Road over French Creek Branch carry?

About 20 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Black Road over French Creek Branch?

The structure is 25 ft (7.6 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.

Who owns Black Road over French Creek Branch?

It is owned by the Town or Township Highway Agency.