US Bridges

SR 78 (lr 141) over Mill Creek

Fair

Berks County, Pennsylvania · 1 Mi.E.Of Bethel · Structure no. 000000000004630

Built
1950
75 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
36,172
2023 count
Owner
State
State Highway Agency

About this bridge

SR 78 (lr 141) over Mill Creek is a concrete culvert carrying SR 78 (lr 141) over Mill Creek in Berks County, Pennsylvania. It was built in 1950, so it is 75 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.

It carries about 36,172 vehicles a day, roughly 35% of them trucks, projected to reach 44,925 by 2032. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSR 78 (lr 141)
CrossesMill Creek
Location1 Mi.E.Of Bethel
RouteInterstate 78
CountyBerks County
StatePennsylvania
Coordinates40.48, -76.27429
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating98.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,172 (2023)
Projected traffic44,925 by 2032
Trucks35%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 SR 78 (lr 141) over Mill Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is SR 78 (lr 141) 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 2023.

How much traffic does SR 78 (lr 141) over Mill Creek carry?

About 36,172 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is SR 78 (lr 141) over Mill Creek?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m).

Who owns SR 78 (lr 141) over Mill Creek?

It is owned by the State Highway Agency.