US Bridges

County Road over Hammonasset River

Good

New Haven County, Connecticut · 1.3 Mi. East of Route 79 · Structure no. 04852

Built
2022
3 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
47 ft
1 main span
Daily traffic
163
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

County Road over Hammonasset River is a concrete box beam or girders - multiple carrying County Road over Hammonasset River in New Haven County, Connecticut. It was built in 2022, so it is 3 years old, younger than the Connecticut average of 56.7 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 163 vehicles a day, roughly 7% of them trucks, projected to reach 242 by 2043. The structure is 47 ft (14.2 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesHammonasset River
Location1.3 Mi. East of Route 79
RouteCity Street 0
CountyNew Haven County
StateConnecticut
Coordinates41.41239, -72.63292
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81.5 US tons
Inventory rating62.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length47 ft (14.2 m)
Longest span40 ft (12.2 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic163 (2023)
Projected traffic242 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.7 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Hammonasset River built?

It was built in 2022, making it 3 years old in 2025.

What condition is County Road over Hammonasset 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 March 2023.

How much traffic does County Road over Hammonasset River carry?

About 163 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is County Road over Hammonasset River?

The structure is 47 ft (14.2 m) long with a longest span of 40 ft (12.2 m) and a deck 27 ft wide.

Who owns County Road over Hammonasset River?

It is owned by the Town or Township Highway Agency.