US Bridges

Carroll ST over Mill Creek

PoorPosted for load

Schuylkill County, Pennsylvania · In St.Clair on Carroll ST · Structure no. 000000000031008

Built
1973
52 years old
Condition
Poor
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
400
1985 count
Owner
City
City or Municipal Highway Agency

About this bridge

Carroll ST over Mill Creek is a prestressed concrete box beam or girders - multiple carrying Carroll ST over Mill Creek in Schuylkill County, Pennsylvania. It was built in 1973, so it is 52 years old, younger 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 4 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: posted for load restriction.

It carries about 400 vehicles a day, roughly 2% of them trucks, projected to reach 1,600 by 2030. The structure is 41 ft (12.5 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCarroll ST
CrossesMill Creek
LocationIn St.Clair on Carroll ST
RouteCity Street 0
Coordinates40.72025, -76.18856
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating23 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span37 ft (11.3 m)
Deck width58 ft (17.6 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (1985)
Projected traffic1,600 by 2030
Trucks2%
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$75,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Carroll ST over Mill Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Carroll 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 July 2024.

How much traffic does Carroll ST over Mill Creek carry?

About 400 vehicles per day (1985 count), of which roughly 2% are trucks.

How long is Carroll ST over Mill Creek?

The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.3 m) and a deck 58 ft wide.

Who owns Carroll ST over Mill Creek?

It is owned by the City or Municipal Highway Agency.