US Bridges

Washington ST over Mispillion River

Good

Kent County, Delaware · Milford · Structure no. 2501 000

Built
1933
92 years old, rebuilt 2012
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
99
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Washington ST over Mispillion River is a steel stringer/multi-beam or girder carrying Washington ST over Mispillion River in Kent County, Delaware. It was built in 1933 and reconstructed in 2012, so it is 92 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 99 vehicles a day, roughly 11% of them trucks, projected to reach 124 by 2042. The structure is 44 ft (13.4 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesWashington ST
CrossesMispillion River
LocationMilford
RouteCity Street 0
Coordinates38.91333, -75.42713
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.6 US tons
Inventory rating60.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width41 ft (12.5 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2022)
Projected traffic124 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$271,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington ST over Mispillion River built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2012.

What condition is Washington ST over Mispillion River 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 July 2023.

How much traffic does Washington ST over Mispillion River carry?

About 99 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Washington ST over Mispillion River?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 41 ft wide.

Who owns Washington ST over Mispillion River?

It is owned by the City or Municipal Highway Agency.