US Bridges

N Grange Avenue over Tri to Skippack Creek

Fair

Montgomery County, Pennsylvania · .2 M S of SR 4005-3142G10 · Structure no. 000000000054285

Built
2003
22 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
1,300
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

N Grange Avenue over Tri to Skippack Creek is a concrete culvert carrying N Grange Avenue over Tri to Skippack Creek in Montgomery County, Pennsylvania. It was built in 2003, so it is 22 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 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 1,300 vehicles a day, roughly 3% of them trucks, projected to reach 1,600 by 2037. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN Grange Avenue
CrossesTri to Skippack Creek
Location.2 M S of SR 4005-3142G10
CountyMontgomery County
StatePennsylvania
Coordinates40.18968, -75.39708
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2017)
Projected traffic1,600 by 2037
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 N Grange Avenue over Tri to Skippack Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is N Grange Avenue over Tri to Skippack 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 March 2023.

How much traffic does N Grange Avenue over Tri to Skippack Creek carry?

About 1,300 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is N Grange Avenue over Tri to Skippack Creek?

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

Who owns N Grange Avenue over Tri to Skippack Creek?

It is owned by the Town or Township Highway Agency.