US Bridges

Route 322 over Lindsley Brook

Good

New Haven County, Connecticut · 1.6 Mi. East of Route 69 · Structure no. 03075

Built
2013
12 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
4,800
2020 count
Owner
State
State Highway Agency

About this bridge

Route 322 over Lindsley Brook is a concrete culvert carrying Route 322 over Lindsley Brook in New Haven County, Connecticut. It was built in 2013, so it is 12 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 4,800 vehicles a day, roughly 3% of them trucks, projected to reach 7,132 by 2040. The structure is 22 ft (6.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 322
CrossesLindsley Brook
Location1.6 Mi. East of Route 69
RouteState Highway 322
CountyNew Haven County
StateConnecticut
Coordinates41.59665, -72.96072
Functional classUrban Minor Arterial

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 inspectionMay 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckOther
Main spans2
Design loadHL 93
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2020)
Projected traffic7,132 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 Route 322 over Lindsley Brook built?

It was built in 2013, making it 12 years old in 2025.

What condition is Route 322 over Lindsley 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 May 2023.

How much traffic does Route 322 over Lindsley Brook carry?

About 4,800 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Route 322 over Lindsley Brook?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns Route 322 over Lindsley Brook?

It is owned by the State Highway Agency.