US Bridges

Laurel Hill Rd. over Slateford Creek

Good

Northampton County, Pennsylvania · 1.1MI W. of PA611 · Structure no. 000000000068530

Built
2021
4 years old
Condition
Good
inspected October 2023
Type
Arch - Deck
Concrete
Length
22 ft
1 main span
Daily traffic
100
2021 count
Owner
County
County Highway Agency

About this bridge

Laurel Hill Rd. over Slateford Creek is a concrete arch - deck carrying Laurel Hill Rd. over Slateford Creek in Northampton County, Pennsylvania. It was built in 2021, so it is 4 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 100 by 2021. The structure is 22 ft (6.7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLaurel Hill Rd.
CrossesSlateford Creek
Location1.1MI W. of PA611
RouteCity Street 0
CountyNorthampton County
StatePennsylvania
Coordinates40.9439, -75.13439
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic100 by 2021
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Laurel Hill Rd. over Slateford Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is Laurel Hill Rd. over Slateford Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Laurel Hill Rd. over Slateford Creek carry?

About 100 vehicles per day (2021 count).

How long is Laurel Hill Rd. over Slateford Creek?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 28 ft wide.

Who owns Laurel Hill Rd. over Slateford Creek?

It is owned by the County Highway Agency.