US Bridges

SR 18 over Over Conneaut Creek Trib

Fair

Crawford County, Pennsylvania · Summit Township · Structure no. 000000000012922

Built
1925
100 years old, rebuilt 1984
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
1,804
2024 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Over Conneaut Creek Trib is a prestressed concrete box beam or girders - multiple carrying SR 18 over Over Conneaut Creek Trib in Crawford County, Pennsylvania. It was built in 1925 and reconstructed in 1984, so it is 100 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 5 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 1,804 vehicles a day, roughly 8% of them trucks, projected to reach 3,766 by 2041. The structure is 28 ft (8.5 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSR 18
CrossesOver Conneaut Creek Trib
LocationSummit Township
RouteState Highway 18
CountyCrawford County
StatePennsylvania
Coordinates41.64817, -80.30625
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating68.2 US tons
Inventory rating42.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,804 (2024)
Projected traffic3,766 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 18 over Over Conneaut Creek Trib built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1984.

What condition is SR 18 over Over Conneaut Creek Trib 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 18 over Over Conneaut Creek Trib carry?

About 1,804 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SR 18 over Over Conneaut Creek Trib?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.

Who owns SR 18 over Over Conneaut Creek Trib?

It is owned by the State Highway Agency.