US Bridges

SR 1018 Armstrong over Over Muddy Creek

Fair

Crawford County, Pennsylvania · Athens Township · Structure no. 000000000013188

Built
1991
34 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
87
2024 count
Owner
State
State Highway Agency

About this bridge

SR 1018 Armstrong over Over Muddy Creek is a concrete culvert carrying SR 1018 Armstrong over Over Muddy Creek in Crawford County, Pennsylvania. It was built in 1991, so it is 34 years old, younger 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 87 vehicles a day, roughly 12% of them trucks, projected to reach 92 by 2032. The structure is 29 ft (8.8 m) long and 36 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 1018 Armstrong
CrossesOver Muddy Creek
LocationAthens Township
RouteState Highway 0
CountyCrawford County
StatePennsylvania
Coordinates41.71606, -79.82844
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width36 ft (11.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87 (2024)
Projected traffic92 by 2032
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 1018 Armstrong over Over Muddy Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR 1018 Armstrong over Over Muddy 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 October 2023.

How much traffic does SR 1018 Armstrong over Over Muddy Creek carry?

About 87 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR 1018 Armstrong over Over Muddy Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 36 ft wide.

Who owns SR 1018 Armstrong over Over Muddy Creek?

It is owned by the State Highway Agency.