US Bridges

Klopfer ST over Girtys Run

PoorPosted for load

Allegheny County, Pennsylvania · 40 East of North Ave · Structure no. 000000000002619

Built
1915
110 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
1,000
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

Klopfer ST over Girtys Run is a steel stringer/multi-beam or girder carrying Klopfer ST over Girtys Run in Allegheny County, Pennsylvania. It was built in 1915, so it is 110 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 1,000 vehicles a day, roughly 6% of them trucks, projected to reach 1,000 by 2025. The structure is 30 ft (9.1 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKlopfer ST
CrossesGirtys Run
Location40 East of North Ave
RouteCity Street 0
Coordinates40.48525, -79.97292
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width48 ft (14.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2005)
Projected traffic1,000 by 2025
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$113,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Klopfer ST over Girtys Run built?

It was built in 1915, making it 110 years old in 2025.

What condition is Klopfer ST over Girtys 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 April 2024.

How much traffic does Klopfer ST over Girtys Run carry?

About 1,000 vehicles per day (2005 count), of which roughly 6% are trucks.

How long is Klopfer ST over Girtys Run?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 48 ft wide.

Who owns Klopfer ST over Girtys Run?

It is owned by the City or Municipal Highway Agency.