US Bridges

SR1011 over Strattan Run

Fair

Clarion County, Pennsylvania · Strattan · Structure no. 000000000011006

Built
1954
71 years old, rebuilt 2005
Condition
Fair
inspected February 2024
Type
Channel Beam
Concrete
Length
23 ft
1 main span
Daily traffic
234
2024 count
Owner
State
State Highway Agency

About this bridge

SR1011 over Strattan Run is a concrete channel beam carrying SR1011 over Strattan Run in Clarion County, Pennsylvania. It was built in 1954 and reconstructed in 2005, so it is 71 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 234 vehicles a day, roughly 10% of them trucks, projected to reach 458 by 2032. The structure is 23 ft (7 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1011
CrossesStrattan Run
LocationStrattan
RouteState Highway 0
Coordinates41.18117, -79.34116
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic234 (2024)
Projected traffic458 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$273,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1011 over Strattan Run built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2005.

What condition is SR1011 over Strattan Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does SR1011 over Strattan Run carry?

About 234 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SR1011 over Strattan Run?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 27 ft wide.

Who owns SR1011 over Strattan Run?

It is owned by the State Highway Agency.