US Bridges

SR Nb/Coastal Hgy over Waples Pond

Good

Sussex County, Delaware · North of Milton · Structure no. 3815N014

Built
2003
22 years old
Condition
Good
inspected June 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
9,151
2020 count
Owner
State
State Highway Agency

About this bridge

SR Nb/Coastal Hgy over Waples Pond is a prestressed concrete box beam or girders - multiple carrying SR Nb/Coastal Hgy over Waples Pond in Sussex County, Delaware. It was built in 2003, so it is 22 years old, younger than the Delaware average of 47.3 years.

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

It carries about 9,151 vehicles a day, roughly 12% of them trucks, projected to reach 11,374 by 2042. The structure is 43 ft (13.1 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR Nb/Coastal Hgy
CrossesWaples Pond
LocationNorth of Milton
RouteState Highway 1
Coordinates38.82418, -75.30853
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length43 ft (13.1 m)
Longest span39 ft (12 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,151 (2020)
Projected traffic11,374 by 2042
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR Nb/Coastal Hgy over Waples Pond built?

It was built in 2003, making it 22 years old in 2025.

What condition is SR Nb/Coastal Hgy over Waples Pond 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 June 2021.

How much traffic does SR Nb/Coastal Hgy over Waples Pond carry?

About 9,151 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is SR Nb/Coastal Hgy over Waples Pond?

The structure is 43 ft (13.1 m) long with a longest span of 39 ft (12 m) and a deck 45 ft wide.

Who owns SR Nb/Coastal Hgy over Waples Pond?

It is owned by the State Highway Agency.