US Bridges

Jackson Ditch RD over Browns Branch

Good

Kent County, Delaware · East of Harrington · Structure no. 2430A430

Built
1974
51 years old
Condition
Good
inspected August 2021
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
1,469
2020 count
Owner
State
State Highway Agency

About this bridge

Jackson Ditch RD over Browns Branch is a concrete culvert carrying Jackson Ditch RD over Browns Branch in Kent County, Delaware. It was built in 1974, so it is 51 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 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 1,469 vehicles a day, roughly 13% of them trucks, projected to reach 1,825 by 2042. The structure is 38 ft (11.6 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesJackson Ditch RD
CrossesBrowns Branch
LocationEast of Harrington
RouteCounty Highway 430
Coordinates38.93163, -75.55109
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,469 (2020)
Projected traffic1,825 by 2042
Trucks13%
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 Jackson Ditch RD over Browns Branch built?

It was built in 1974, making it 51 years old in 2025.

What condition is Jackson Ditch RD over Browns Branch 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 August 2021.

How much traffic does Jackson Ditch RD over Browns Branch carry?

About 1,469 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is Jackson Ditch RD over Browns Branch?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 40 ft wide.

Who owns Jackson Ditch RD over Browns Branch?

It is owned by the State Highway Agency.