US Bridges

TR-318 (t. Br.# 1 over North Br.Towanda Creek

PoorPosted for load

Bradford County, Pennsylvania · .6 M. E. Granville Summit · Structure no. 000000000006592

Built
1974
51 years old
Condition
Poor
inspected July 2023
Type
Slab
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-318 (t. Br.# 1 over North Br.Towanda Creek is a prestressed concrete slab carrying TR-318 (t. Br.# 1 over North Br.Towanda Creek in Bradford County, Pennsylvania. It was built in 1974, so it is 51 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 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 4% of them trucks, projected to reach 77 by 2046. The structure is 26 ft (7.9 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTR-318 (t. Br.# 1
CrossesNorth Br.Towanda Creek
Location.6 M. E. Granville Summit
RouteCity Street 0
CountyBradford County
StatePennsylvania
Coordinates41.71606, -76.76811
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.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be 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 rating42 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width22 ft (6.8 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic77 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$70,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR-318 (t. Br.# 1 over North Br.Towanda Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is TR-318 (t. Br.# 1 over North Br.Towanda Creek 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 July 2023.

How much traffic does TR-318 (t. Br.# 1 over North Br.Towanda Creek carry?

About 50 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is TR-318 (t. Br.# 1 over North Br.Towanda Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 22 ft wide.

Who owns TR-318 (t. Br.# 1 over North Br.Towanda Creek?

It is owned by the Town or Township Highway Agency.