US Bridges

T-416 over Porter Creek

PoorPosted for load

Sullivan County, Pennsylvania · 2.3 MI Sse of Shunk · Structure no. 000000000032113

Built
1930
95 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-416 over Porter Creek is a steel stringer/multi-beam or girder carrying T-416 over Porter Creek in Sullivan County, Pennsylvania. It was built in 1930, so it is 95 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 77 by 2046. The structure is 35 ft (10.7 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT-416
CrossesPorter Creek
Location2.3 MI Sse of Shunk
RouteCity Street 0
Coordinates41.53018, -76.70208
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating20 US tons
Inventory rating12 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadH 20
Structure length35 ft (10.7 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic77 by 2046
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$238,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-416 over Porter Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is T-416 over Porter 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 September 2023.

How much traffic does T-416 over Porter Creek carry?

About 50 vehicles per day (2024 count).

How long is T-416 over Porter Creek?

The structure is 35 ft (10.7 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns T-416 over Porter Creek?

It is owned by the Town or Township Highway Agency.