US Bridges

Mill ROAD(T402) over West Br Red Clay Creek

FairPosted for load

Chester County, Pennsylvania · E.Marlboro Twp. 47B03 · Structure no. 000000000010679

Built
1889
136 years old, rebuilt 1992
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
659
2018 count
Owner
County
County Highway Agency

About this bridge

Mill ROAD(T402) over West Br Red Clay Creek is a steel stringer/multi-beam or girder carrying Mill ROAD(T402) over West Br Red Clay Creek in Chester County, Pennsylvania. It was built in 1889 and reconstructed in 1992, so it is 136 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. Its operating status is: posted for load restriction.

It carries about 659 vehicles a day, roughly 3% of them trucks, projected to reach 725 by 2023. The structure is 60 ft (18.3 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMill ROAD(T402)
CrossesWest Br Red Clay Creek
LocationE.Marlboro Twp. 47B03
RouteCity Street 0
Coordinates39.85875, -75.73217
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating81 US tons
Inventory rating48 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width16 ft (5 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic659 (2018)
Projected traffic725 by 2023
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mill ROAD(T402) over West Br Red Clay Creek built?

It was built in 1889, making it 136 years old in 2025. It was reconstructed in 1992.

What condition is Mill ROAD(T402) over West Br Red Clay 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 July 2024.

How much traffic does Mill ROAD(T402) over West Br Red Clay Creek carry?

About 659 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Mill ROAD(T402) over West Br Red Clay Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 16 ft wide.

Who owns Mill ROAD(T402) over West Br Red Clay Creek?

It is owned by the County Highway Agency.