US Bridges

Hoffman Heights RD over Porters Run

PoorPosted for load

Westmoreland County, Pennsylvania · 400 West of T729 Inter. · Structure no. 000000000036957

Built
1914
111 years old
Condition
Poor
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
50
1992 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Hoffman Heights RD over Porters Run is a steel stringer/multi-beam or girder carrying Hoffman Heights RD over Porters Run in Westmoreland County, Pennsylvania. It was built in 1914, so it is 111 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 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 100 by 2010. The structure is 29 ft (8.8 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesHoffman Heights RD
CrossesPorters Run
Location400 West of T729 Inter.
RouteCity Street 0T728
CountyWestmoreland County
StatePennsylvania
Coordinates40.43018, -79.51982
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length29 ft (8.8 m)
Longest span25 ft (7.6 m)
Deck width16 ft (5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1992)
Projected traffic100 by 2010
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$84,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hoffman Heights RD over Porters Run built?

It was built in 1914, making it 111 years old in 2025.

What condition is Hoffman Heights RD over Porters 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 October 2022.

How much traffic does Hoffman Heights RD over Porters Run carry?

About 50 vehicles per day (1992 count), of which roughly 5% are trucks.

How long is Hoffman Heights RD over Porters Run?

The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m) and a deck 16 ft wide.

Who owns Hoffman Heights RD over Porters Run?

It is owned by the Town or Township Highway Agency.