US Bridges

SR 4006(LR 48085) over West Br.Of Monocacy Ck.

Fair

Northampton County, Pennsylvania · Whitetail Deer Drive · Structure no. 000000000028781

Built
1950
75 years old, rebuilt 2015
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
409
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4006(LR 48085) over West Br.Of Monocacy Ck. is a concrete slab carrying SR 4006(LR 48085) over West Br.Of Monocacy Ck. in Northampton County, Pennsylvania. It was built in 1950 and reconstructed in 2015, 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 409 vehicles a day, roughly 1% of them trucks, projected to reach 520 by 2032. The structure is 23 ft (7 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSR 4006(LR 48085)
CrossesWest Br.Of Monocacy Ck.
LocationWhitetail Deer Drive
RouteState Highway 0
Coordinates40.74473, -75.40004
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating93 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic409 (2024)
Projected traffic520 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$244,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4006(LR 48085) over West Br.Of Monocacy Ck. built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2015.

What condition is SR 4006(LR 48085) over West Br.Of Monocacy Ck. 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 August 2023.

How much traffic does SR 4006(LR 48085) over West Br.Of Monocacy Ck. carry?

About 409 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 4006(LR 48085) over West Br.Of Monocacy Ck.?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns SR 4006(LR 48085) over West Br.Of Monocacy Ck.?

It is owned by the State Highway Agency.