US Bridges

Colliery St. over Mill Creek

PoorClosed to traffic

Schuylkill County, Pennsylvania · Colliery St. St.Clair · Structure no. 000000000031012

Built
1921
104 years old
Condition
Poor
inspected June 2024
Type
Arch - Deck
Concrete
Length
60 ft
1 main span
Daily traffic
50
1985 count
Owner
County
County Highway Agency

About this bridge

Colliery St. over Mill Creek is a concrete arch - deck carrying Colliery St. over Mill Creek in Schuylkill County, Pennsylvania. It was built in 1921, so it is 104 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 50 vehicles a day, projected to reach 50 by 2005. The structure is 60 ft (18.3 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesColliery St.
CrossesMill Creek
LocationColliery St. St.Clair
RouteCity Street 0COLL
Coordinates40.72946, -76.19452
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure0 FailedOut of service and beyond corrective action.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1985)
Projected traffic50 by 2005
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$137,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Colliery St. over Mill Creek built?

It was built in 1921, making it 104 years old in 2025.

What condition is Colliery St. over Mill Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Colliery St. over Mill Creek carry?

About 50 vehicles per day (1985 count).

How long is Colliery St. over Mill Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 27 ft wide.

Who owns Colliery St. over Mill Creek?

It is owned by the County Highway Agency.