US Bridges

East Patterson ST over Mill Creek

Fair

Schuylkill County, Pennsylvania · St.Clair on Patterson · Structure no. 000000000031006

Built
1990
35 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
600
1990 count
Owner
City
City or Municipal Highway Agency

About this bridge

East Patterson ST over Mill Creek is a prestressed concrete box beam or girders - multiple carrying East Patterson ST over Mill Creek in Schuylkill County, Pennsylvania. It was built in 1990, so it is 35 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 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 600 vehicles a day, roughly 1% of them trucks, projected to reach 840 by 2010. The structure is 37 ft (11.3 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEast Patterson ST
CrossesMill Creek
LocationSt.Clair on Patterson
RouteCity Street 0
Coordinates40.71652, -76.18705
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 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
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating66 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width45 ft (13.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (1990)
Projected traffic840 by 2010
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was East Patterson ST over Mill Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is East Patterson ST over Mill 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 June 2024.

How much traffic does East Patterson ST over Mill Creek carry?

About 600 vehicles per day (1990 count), of which roughly 1% are trucks.

How long is East Patterson ST over Mill Creek?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 45 ft wide.

Who owns East Patterson ST over Mill Creek?

It is owned by the City or Municipal Highway Agency.