US Bridges

Main Street over B&p Railroad

Poor

Butler County, Pennsylvania · Harmony Main Street · Structure no. 000000000008321

Built
1916
109 years old, rebuilt 1978
Condition
Poor
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
50
2005 count
Owner
Railroad
Railroad

About this bridge

Main Street over B&p Railroad is a prestressed concrete box beam or girders - multiple carrying Main Street over B&p Railroad in Butler County, Pennsylvania. It was built in 1916 and reconstructed in 1978, 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 4 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.

It carries about 50 vehicles a day, projected to reach 70 by 2022. The structure is 33 ft (10.1 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMain Street
CrossesB&p Railroad
LocationHarmony Main Street
RouteCity Street 7409
Coordinates40.8021, -80.1276
Functional classRural 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 22 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating33 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span29 ft (8.8 m)
Deck width39 ft (12 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2005)
Projected traffic70 by 2022
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Main Street over B&p Railroad built?

It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1978.

What condition is Main Street over B&p Railroad 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 May 2024.

How much traffic does Main Street over B&p Railroad carry?

About 50 vehicles per day (2005 count).

How long is Main Street over B&p Railroad?

The structure is 33 ft (10.1 m) long with a longest span of 29 ft (8.8 m) and a deck 39 ft wide.

Who owns Main Street over B&p Railroad?

It is owned by the Railroad.