US Bridges

Nonnewaug Road over East Spring Brook

Good

Litchfield County, Connecticut · 50 East of Porter Hill RD · Structure no. 05572

Built
1988
37 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
3,400
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Nonnewaug Road over East Spring Brook is a concrete culvert carrying Nonnewaug Road over East Spring Brook in Litchfield County, Connecticut. It was built in 1988, so it is 37 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 3,400 vehicles a day, roughly 7% of them trucks, projected to reach 5,052 by 2043. The structure is 25 ft (7.6 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNonnewaug Road
CrossesEast Spring Brook
Location50 East of Porter Hill RD
RouteCity Street 0
Coordinates41.61226, -73.17595
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width27 ft (8.1 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2023)
Projected traffic5,052 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Nonnewaug Road over East Spring Brook built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nonnewaug Road over East Spring Brook 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 November 2023.

How much traffic does Nonnewaug Road over East Spring Brook carry?

About 3,400 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Nonnewaug Road over East Spring Brook?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 27 ft wide.

Who owns Nonnewaug Road over East Spring Brook?

It is owned by the Town or Township Highway Agency.