US Bridges

Farmington Avenue over Pa 100

Fair

Montgomery County, Pennsylvania · U. Pottsgrove 11F3/3026H4 · Structure no. 000000000027862

Built
1964
61 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
113 ft
1 main span
Daily traffic
5,155
2024 count
Owner
State
State Highway Agency

About this bridge

Farmington Avenue over Pa 100 is a steel stringer/multi-beam or girder carrying Farmington Avenue over Pa 100 in Montgomery County, Pennsylvania. It was built in 1964, so it is 61 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 5,155 vehicles a day, roughly 2% of them trucks, projected to reach 6,012 by 2032. The structure is 113 ft (34.4 m) long and 46 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFarmington Avenue
CrossesPa 100
LocationU. Pottsgrove 11F3/3026H4
RouteState Highway 0
CountyMontgomery County
StatePennsylvania
Coordinates40.28938, -75.64306
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span111 ft (33.8 m)
Deck width46 ft (13.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,155 (2024)
Projected traffic6,012 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Farmington Avenue over Pa 100 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Farmington Avenue over Pa 100 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 October 2023.

How much traffic does Farmington Avenue over Pa 100 carry?

About 5,155 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Farmington Avenue over Pa 100?

The structure is 113 ft (34.4 m) long with a longest span of 111 ft (33.8 m) and a deck 46 ft wide.

Who owns Farmington Avenue over Pa 100?

It is owned by the State Highway Agency.