US Bridges

Main ST over Lake Como Spillway

Good

Kent County, Delaware · Smyrna · Structure no. 2065C065

Built
1982
43 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
5,090
2020 count
Owner
State
State Highway Agency

About this bridge

Main ST over Lake Como Spillway is a concrete culvert carrying Main ST over Lake Como Spillway in Kent County, Delaware. It was built in 1982, so it is 43 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 5,090 vehicles a day, roughly 7% of them trucks, projected to reach 6,326 by 2042. The structure is 21 ft (6.4 m) long and 48 ft wide.

CarriesMain ST
CrossesLake Como Spillway
LocationSmyrna
RouteCounty Highway 65
Coordinates39.29677, -75.60039
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating105.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width48 ft (14.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,090 (2020)
Projected traffic6,326 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 Main ST over Lake Como Spillway built?

It was built in 1982, making it 43 years old in 2025.

What condition is Main ST over Lake Como Spillway 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 2021.

How much traffic does Main ST over Lake Como Spillway carry?

About 5,090 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Main ST over Lake Como Spillway?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 48 ft wide.

Who owns Main ST over Lake Como Spillway?

It is owned by the State Highway Agency.