US Bridges

SR 422(LR 146) over Monocacy Creek

Fair

Berks County, Pennsylvania · 1 Mi.East of Pa 82 Inter. · Structure no. 000000000004865

Built
1941
84 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
66 ft
2 main spans
Daily traffic
44,528
2024 count
Owner
State
State Highway Agency

About this bridge

SR 422(LR 146) over Monocacy Creek is a concrete tee beam carrying SR 422(LR 146) over Monocacy Creek in Berks County, Pennsylvania. It was built in 1941, so it is 84 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 44,528 vehicles a day, roughly 13% of them trucks, projected to reach 35,187 by 2032. The structure is 66 ft (20.1 m) long and 69 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 422(LR 146)
CrossesMonocacy Creek
Location1 Mi.East of Pa 82 Inter.
RouteU.S. Route 422
CountyBerks County
StatePennsylvania
Coordinates40.27448, -75.7818
Functional classUrban Other Principal 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span32 ft (9.8 m)
Deck width69 ft (20.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,528 (2024)
Projected traffic35,187 by 2032
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$179,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 422(LR 146) over Monocacy Creek built?

It was built in 1941, making it 84 years old in 2025.

What condition is SR 422(LR 146) over Monocacy 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 422(LR 146) over Monocacy Creek carry?

About 44,528 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SR 422(LR 146) over Monocacy Creek?

The structure is 66 ft (20.1 m) long with a longest span of 32 ft (9.8 m) and a deck 69 ft wide.

Who owns SR 422(LR 146) over Monocacy Creek?

It is owned by the State Highway Agency.