US Bridges

Elem. School RD over Limestone Run

Fair

Northumberland County, Pennsylvania · Milton Boro · Structure no. 000000000029409

Built
1970
55 years old
Condition
Fair
inspected April 2023
Type
Culvert
Steel
Length
36 ft
2 main spans
Daily traffic
200
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Elem. School RD over Limestone Run is a steel culvert carrying Elem. School RD over Limestone Run in Northumberland County, Pennsylvania. It was built in 1970, so it is 55 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 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 200 vehicles a day, roughly 3% of them trucks, projected to reach 309 by 2045. The structure is 36 ft (11 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesElem. School RD
CrossesLimestone Run
LocationMilton Boro
RouteCity Street 0
CountyNorthumberland County
StatePennsylvania
Coordinates41.01766, -76.83729
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length36 ft (11 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic309 by 2045
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Elem. School RD over Limestone Run built?

It was built in 1970, making it 55 years old in 2025.

What condition is Elem. School RD over Limestone 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 April 2023.

How much traffic does Elem. School RD over Limestone Run carry?

About 200 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Elem. School RD over Limestone Run?

The structure is 36 ft (11 m) long with a longest span of 17 ft (5.2 m).

Who owns Elem. School RD over Limestone Run?

It is owned by the Town or Township Highway Agency.