US Bridges

Prospect-Troy Boro over Fall Brook

PoorPosted for load

Bradford County, Pennsylvania · Prospect ST Troy Boro · Structure no. 000000000006701

Built
1972
53 years old
Condition
Poor
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
200
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Prospect-Troy Boro over Fall Brook is a prestressed concrete box beam or girders - multiple carrying Prospect-Troy Boro over Fall Brook in Bradford County, Pennsylvania. It was built in 1972, so it is 53 years old, younger 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 200 vehicles a day, roughly 1% of them trucks, projected to reach 309 by 2046. The structure is 36 ft (11 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesProspect-Troy Boro
CrossesFall Brook
LocationProspect ST Troy Boro
RouteCity Street 0
Coordinates41.77609, -76.79405
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating44 US tons
Inventory rating17 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic309 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$72,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Prospect-Troy Boro over Fall Brook built?

It was built in 1972, making it 53 years old in 2025.

What condition is Prospect-Troy Boro over Fall Brook 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 August 2023.

How much traffic does Prospect-Troy Boro over Fall Brook carry?

About 200 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Prospect-Troy Boro over Fall Brook?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns Prospect-Troy Boro over Fall Brook?

It is owned by the City or Municipal Highway Agency.