US Bridges

T666 Lenhart Road over Stonycreek River

PoorPosted for load

Somerset County, Pennsylvania · .3 Mi.Se.Of Stoystown · Structure no. 000000000031888

Built
1887
138 years old, rebuilt 2002
Condition
Poor
inspected October 2024
Type
Truss - Thru
Steel
Length
95 ft
1 main span
Daily traffic
75
2024 count
Owner
County
County Highway Agency

About this bridge

T666 Lenhart Road over Stonycreek River is a steel truss - thru carrying T666 Lenhart Road over Stonycreek River in Somerset County, Pennsylvania. It was built in 1887 and reconstructed in 2002, so it is 138 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 75 vehicles a day, projected to reach 94 by 2044. The structure is 95 ft (29 m) long and 14 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesT666 Lenhart Road
CrossesStonycreek River
Location.3 Mi.Se.Of Stoystown
RouteCity Street 0
CountySomerset County
StatePennsylvania
Coordinates40.10004, -78.94801
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating5 US tons
Inventory rating4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 10
Structure length95 ft (29 m)
Longest span93 ft (28.3 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deck14 ft (4.2 m)

Traffic and service

Average daily traffic75 (2024)
Projected traffic94 by 2044
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T666 Lenhart Road over Stonycreek River built?

It was built in 1887, making it 138 years old in 2025. It was reconstructed in 2002.

What condition is T666 Lenhart Road over Stonycreek River 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 2024.

How much traffic does T666 Lenhart Road over Stonycreek River carry?

About 75 vehicles per day (2024 count).

How long is T666 Lenhart Road over Stonycreek River?

The structure is 95 ft (29 m) long with a longest span of 93 ft (28.3 m) and a deck 14 ft wide.

Who owns T666 Lenhart Road over Stonycreek River?

It is owned by the County Highway Agency.