US Bridges

T920 Mansville RD over Keffer Run

PoorPosted for load

Westmoreland County, Pennsylvania · Btw SR 2033 and SR 2008 · Structure no. 000000000036884

Built
1981
44 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
50
2015 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T920 Mansville RD over Keffer Run is a steel stringer/multi-beam or girder carrying T920 Mansville RD over Keffer Run in Westmoreland County, Pennsylvania. It was built in 1981, so it is 44 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 2 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 55 by 2035. The structure is 24 ft (7.3 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesT920 Mansville RD
CrossesKeffer Run
LocationBtw SR 2033 and SR 2008
RouteCity Street 0T922
Coordinates40.20607, -79.32262
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2015)
Projected traffic55 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$42,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T920 Mansville RD over Keffer Run built?

It was built in 1981, making it 44 years old in 2025.

What condition is T920 Mansville RD over Keffer 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 November 2024.

How much traffic does T920 Mansville RD over Keffer Run carry?

About 50 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is T920 Mansville RD over Keffer Run?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 18 ft wide.

Who owns T920 Mansville RD over Keffer Run?

It is owned by the Town or Township Highway Agency.