US Bridges

Gillespie Avenue over Trout Run

PoorPosted for load

Cambria County, Pennsylvania · Portage Gillespie Avenue · Structure no. 000000000008804

Built
1924
101 years old
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
256
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gillespie Avenue over Trout Run is a steel stringer/multi-beam or girder carrying Gillespie Avenue over Trout Run in Cambria County, Pennsylvania. It was built in 1924, so it is 101 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 256 vehicles a day, roughly 1% of them trucks, projected to reach 321 by 2044. The structure is 27 ft (8.2 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGillespie Avenue
CrossesTrout Run
LocationPortage Gillespie Avenue
RouteCity Street 0
Coordinates40.38649, -78.67685
Functional classUrban 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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating30 US tons
Inventory rating18 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width37 ft (11.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic256 (2024)
Projected traffic321 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$549,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Gillespie Avenue over Trout Run built?

It was built in 1924, making it 101 years old in 2025.

What condition is Gillespie Avenue over Trout Run 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 Gillespie Avenue over Trout Run carry?

About 256 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Gillespie Avenue over Trout Run?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 37 ft wide.

Who owns Gillespie Avenue over Trout Run?

It is owned by the City or Municipal Highway Agency.