US Bridges

Forge Road over US-1 By-Pass

Fair

Chester County, Pennsylvania · .7MI.N.PA Interch. 50K06 · Structure no. 000000000010414

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
130 ft
2 main spans
Daily traffic
1,084
2023 count
Owner
State
State Highway Agency

About this bridge

Forge Road over US-1 By-Pass is a prestressed concrete box beam or girders - multiple carrying Forge Road over US-1 By-Pass in Chester County, Pennsylvania. It was built in 1968, so it is 57 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 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 1,084 vehicles a day, roughly 9% of them trucks, projected to reach 1,065 by 2032. The structure is 130 ft (39.6 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesForge Road
CrossesUS-1 By-Pass
Location.7MI.N.PA Interch. 50K06
RouteState Highway 0
CountyChester County
StatePennsylvania
Coordinates39.76086, -76.01909
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating37 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span64 ft (19.5 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,084 (2023)
Projected traffic1,065 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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$156,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Forge Road over US-1 By-Pass built?

It was built in 1968, making it 57 years old in 2025.

What condition is Forge Road over US-1 By-Pass 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 2024.

How much traffic does Forge Road over US-1 By-Pass carry?

About 1,084 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Forge Road over US-1 By-Pass?

The structure is 130 ft (39.6 m) long with a longest span of 64 ft (19.5 m) and a deck 33 ft wide.

Who owns Forge Road over US-1 By-Pass?

It is owned by the State Highway Agency.