US Bridges

Pa 724 (lr 147) over Mill Race

Fair

Berks County, Pennsylvania · @ Allegheny Aqueduct · Structure no. 000000000004928

Built
1956
69 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
10,331
2023 count
Owner
State
State Highway Agency

About this bridge

Pa 724 (lr 147) over Mill Race is a steel stringer/multi-beam or girder carrying Pa 724 (lr 147) over Mill Race in Berks County, Pennsylvania. It was built in 1956, so it is 69 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 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 10,331 vehicles a day, roughly 8% of them trucks, projected to reach 14,710 by 2032. The structure is 35 ft (10.7 m) long and 41 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesPa 724 (lr 147)
CrossesMill Race
Location@ Allegheny Aqueduct
RouteState Highway 724
CountyBerks County
StatePennsylvania
Coordinates40.28571, -75.87514
Functional classUrban Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,331 (2023)
Projected traffic14,710 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Pa 724 (lr 147) over Mill Race built?

It was built in 1956, making it 69 years old in 2025.

What condition is Pa 724 (lr 147) over Mill Race 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 October 2023.

How much traffic does Pa 724 (lr 147) over Mill Race carry?

About 10,331 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Pa 724 (lr 147) over Mill Race?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 41 ft wide.

Who owns Pa 724 (lr 147) over Mill Race?

It is owned by the State Highway Agency.