US Bridges

SR 1011 over Mosquito Creek

Fair

Clearfield County, Pennsylvania · 2 MI NW Karthaus · Structure no. 000000000011669

Built
1956
69 years old, rebuilt 2011
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
87 ft
2 main spans
Daily traffic
1,629
2024 count
Owner
State
State Highway Agency

About this bridge

SR 1011 over Mosquito Creek is a steel stringer/multi-beam or girder carrying SR 1011 over Mosquito Creek in Clearfield County, Pennsylvania. It was built in 1956 and reconstructed in 2011, so it is 69 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 1,629 vehicles a day, roughly 6% of them trucks, projected to reach 1,356 by 2043. The structure is 87 ft (26.5 m) long and 41 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 1011
CrossesMosquito Creek
Location2 MI NW Karthaus
RouteState Highway 0
CountyClearfield County
StatePennsylvania
Coordinates41.12903, -78.13335
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span42 ft (12.8 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,629 (2024)
Projected traffic1,356 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$539,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 1011 over Mosquito Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2011.

What condition is SR 1011 over Mosquito Creek 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 May 2023.

How much traffic does SR 1011 over Mosquito Creek carry?

About 1,629 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR 1011 over Mosquito Creek?

The structure is 87 ft (26.5 m) long with a longest span of 42 ft (12.8 m) and a deck 41 ft wide.

Who owns SR 1011 over Mosquito Creek?

It is owned by the State Highway Agency.