US Bridges

County LN RD over Mahoning Creek

PoorPosted for load

Carbon County, Pennsylvania · Davis Bridge · Structure no. 000000000009126

Built
1910
115 years old
Condition
Poor
inspected March 2024
Type
Arch - Deck
Masonry
Length
28 ft
1 main span
Daily traffic
150
1995 count
Owner
County
County Highway Agency

About this bridge

County LN RD over Mahoning Creek is a masonry arch - deck carrying County LN RD over Mahoning Creek in Carbon County, Pennsylvania. It was built in 1910, so it is 115 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 1% of them trucks, projected to reach 300 by 2030. The structure is 28 ft (8.5 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty LN RD
CrossesMahoning Creek
LocationDavis Bridge
RouteCity Street 0
CountyCarbon County
StatePennsylvania
Coordinates40.78343, -75.82662
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating24 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width21 ft (6.5 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (1995)
Projected traffic300 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$145,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County LN RD over Mahoning Creek built?

It was built in 1910, making it 115 years old in 2025.

What condition is County LN RD over Mahoning Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does County LN RD over Mahoning Creek carry?

About 150 vehicles per day (1995 count), of which roughly 1% are trucks.

How long is County LN RD over Mahoning Creek?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 21 ft wide.

Who owns County LN RD over Mahoning Creek?

It is owned by the County Highway Agency.