US Bridges

Red Mill RD over Stream Mill Pond

Good

New Castle County, Delaware · East of Newark · Structure no. 1242 352

Built
1971
54 years old, rebuilt 2022
Condition
Good
inspected March 2022
Type
Culvert
Concrete
Length
36 ft
2 main spans
Daily traffic
18,195
2020 count
Owner
State
State Highway Agency

About this bridge

Red Mill RD over Stream Mill Pond is a concrete culvert carrying Red Mill RD over Stream Mill Pond in New Castle County, Delaware. It was built in 1971 and reconstructed in 2022, so it is 54 years old, older 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 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 18,195 vehicles a day, roughly 7% of them trucks, projected to reach 28,446 by 2042. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRed Mill RD
CrossesStream Mill Pond
LocationEast of Newark
RouteCounty Highway 352
Coordinates39.69153, -75.70814
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length36 ft (11.1 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,195 (2020)
Projected traffic28,446 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Red Mill RD over Stream Mill Pond built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2022.

What condition is Red Mill RD over Stream Mill 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 March 2022.

How much traffic does Red Mill RD over Stream Mill Pond carry?

About 18,195 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Red Mill RD over Stream Mill Pond?

The structure is 36 ft (11.1 m) long with a longest span of 16 ft (4.9 m).

Who owns Red Mill RD over Stream Mill Pond?

It is owned by the State Highway Agency.