US Bridges

SR1007 over Mahoning Creek

Fair

Armstrong County, Pennsylvania · Deanville Road · Structure no. 000000000003110

Built
1913
112 years old
Condition
Fair
inspected September 2023
Type
Arch - Deck
Concrete
Length
181 ft
2 main spans
Daily traffic
15
2023 count
Owner
State
State Highway Agency

About this bridge

SR1007 over Mahoning Creek is a concrete arch - deck carrying SR1007 over Mahoning Creek in Armstrong County, Pennsylvania. It was built in 1913, so it is 112 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 15 vehicles a day, roughly 9% of them trucks, projected to reach 35 by 2032. The structure is 181 ft (55.2 m) long and 19 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSR1007
CrossesMahoning Creek
LocationDeanville Road
RouteState Highway 0
CountyArmstrong County
StatePennsylvania
Coordinates40.93107, -79.38818
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating51 US tons
Inventory rating31 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length181 ft (55.2 m)
Longest span85 ft (25.9 m)
Deck width19 ft (5.7 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2023)
Projected traffic35 by 2032
Trucks9%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
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 statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$699,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1007 over Mahoning Creek built?

It was built in 1913, making it 112 years old in 2025.

What condition is SR1007 over Mahoning 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 September 2023.

How much traffic does SR1007 over Mahoning Creek carry?

About 15 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SR1007 over Mahoning Creek?

The structure is 181 ft (55.2 m) long with a longest span of 85 ft (25.9 m) and a deck 19 ft wide.

Who owns SR1007 over Mahoning Creek?

It is owned by the State Highway Agency.