US Bridges

Pa Tpk (I-76) over SR 0100

Fair

Chester County, Pennsylvania · West Downingtown Interchg · Structure no. 000000000010744

Built
1950
75 years old, rebuilt 1990
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
174 ft
1 main span
Daily traffic
46,178
2004 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over SR 0100 is a steel stringer/multi-beam or girder carrying Pa Tpk (I-76) over SR 0100 in Chester County, Pennsylvania. It was built in 1950 and reconstructed in 1990, so it is 75 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 46,178 vehicles a day, roughly 19% of them trucks, projected to reach 66,798 by 2030. The structure is 174 ft (53 m) long and 91 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesPa Tpk (I-76)
CrossesSR 0100
LocationWest Downingtown Interchg
RouteInterstate 76
CountyChester County
StatePennsylvania
Coordinates40.07093, -75.68011
Functional classRural Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length174 ft (53 m)
Longest span170 ft (51.8 m)
Deck width91 ft (27.6 m)
Roadway width85 ft (26 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,178 (2004)
Projected traffic66,798 by 2030
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed24.2 mi (39 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$555,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk (I-76) over SR 0100 built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1990.

What condition is Pa Tpk (I-76) over SR 0100 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 June 2024.

How much traffic does Pa Tpk (I-76) over SR 0100 carry?

About 46,178 vehicles per day (2004 count), of which roughly 19% are trucks.

How long is Pa Tpk (I-76) over SR 0100?

The structure is 174 ft (53 m) long with a longest span of 170 ft (51.8 m) and a deck 91 ft wide.

Who owns Pa Tpk (I-76) over SR 0100?

It is owned by the State Toll Authority.