US Bridges

SR0839 over Mahoning Creek

Fair

Armstrong County, Pennsylvania · Milton · Structure no. 000000000003099

Built
1942
83 years old
Condition
Fair
inspected September 2023
Type
Other
Concrete
Length
450 ft
7 main spans
Daily traffic
692
2024 count
Owner
State
State Highway Agency

About this bridge

SR0839 over Mahoning Creek is a concrete other carrying SR0839 over Mahoning Creek in Armstrong County, Pennsylvania. It was built in 1942, so it is 83 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 692 vehicles a day, roughly 9% of them trucks, projected to reach 992 by 2032. The structure is 450 ft (137.2 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR0839
CrossesMahoning Creek
LocationMilton
RouteState Highway 839
CountyArmstrong County
StatePennsylvania
Coordinates40.90178, -79.22163
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
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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46 US tons
Inventory rating28 US tons

Structure

Structure typeOther
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length450 ft (137.2 m)
Longest span80 ft (24.4 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic692 (2024)
Projected traffic992 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$784,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR0839 over Mahoning Creek built?

It was built in 1942, making it 83 years old in 2025.

What condition is SR0839 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 SR0839 over Mahoning Creek carry?

About 692 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR0839 over Mahoning Creek?

The structure is 450 ft (137.2 m) long with a longest span of 80 ft (24.4 m) and a deck 28 ft wide.

Who owns SR0839 over Mahoning Creek?

It is owned by the State Highway Agency.