US Bridges

Northfield Road over Naugatuck River

Good

Litchfield County, Connecticut · Litchfield-Harwinton T.L. · Structure no. 05057

Built
2011
14 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
216 ft
3 main spans
Daily traffic
530
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Northfield Road over Naugatuck River is a steel stringer/multi-beam or girder carrying Northfield Road over Naugatuck River in Litchfield County, Connecticut. It was built in 2011, so it is 14 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 530 vehicles a day, roughly 2% of them trucks, projected to reach 788 by 2044. The structure is 216 ft (65.8 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNorthfield Road
CrossesNaugatuck River
LocationLitchfield-Harwinton T.L.
RouteCity Street 0
Coordinates41.73453, -73.10518
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99.4 US tons
Inventory rating59.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length216 ft (65.8 m)
Longest span87 ft (26.5 m)
Deck width32 ft (9.8 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2024)
Projected traffic788 by 2044
Trucks2%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Northfield Road over Naugatuck River built?

It was built in 2011, making it 14 years old in 2025.

What condition is Northfield Road over Naugatuck 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 October 2024.

How much traffic does Northfield Road over Naugatuck River carry?

About 530 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Northfield Road over Naugatuck River?

The structure is 216 ft (65.8 m) long with a longest span of 87 ft (26.5 m) and a deck 32 ft wide.

Who owns Northfield Road over Naugatuck River?

It is owned by the Town or Township Highway Agency.