US Bridges

Chestnut ST over Carbon Run

Fair

Northumberland County, Pennsylvania · Shamokin City · Structure no. 000000000029397

Built
1993
32 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
5,000
2009 count
Owner
County
County Highway Agency

About this bridge

Chestnut ST over Carbon Run is a concrete culvert carrying Chestnut ST over Carbon Run in Northumberland County, Pennsylvania. It was built in 1993, so it is 32 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 5,000 vehicles a day, roughly 1% of them trucks, projected to reach 7,730 by 2031. The structure is 29 ft (8.8 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesChestnut ST
CrossesCarbon Run
LocationShamokin City
RouteCity Street 0
CountyNorthumberland County
StatePennsylvania
Coordinates40.78744, -76.56096
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating53 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width59 ft (17.9 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2009)
Projected traffic7,730 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Chestnut ST over Carbon Run built?

It was built in 1993, making it 32 years old in 2025.

What condition is Chestnut ST over Carbon Run 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 Chestnut ST over Carbon Run carry?

About 5,000 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is Chestnut ST over Carbon Run?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 59 ft wide.

Who owns Chestnut ST over Carbon Run?

It is owned by the County Highway Agency.