US Bridges

Route 4 over Baldwin Brook

Fair

Litchfield County, Connecticut · At JCT of Jewell Street · Structure no. 01936

Built
1996
29 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
2,800
2021 count
Owner
State
State Highway Agency

About this bridge

Route 4 over Baldwin Brook is a concrete culvert carrying Route 4 over Baldwin Brook in Litchfield County, Connecticut. It was built in 1996, so it is 29 years old, younger than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,800 vehicles a day, roughly 7% of them trucks, projected to reach 4,161 by 2041. The structure is 24 ft (7.3 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRoute 4
CrossesBaldwin Brook
LocationAt JCT of Jewell Street
RouteState Highway 4
Coordinates41.84496, -73.33763
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment7: Better than present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2021)
Projected traffic4,161 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 4 over Baldwin Brook built?

It was built in 1996, making it 29 years old in 2025.

What condition is Route 4 over Baldwin Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.

How much traffic does Route 4 over Baldwin Brook carry?

About 2,800 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Route 4 over Baldwin Brook?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 35 ft wide.

Who owns Route 4 over Baldwin Brook?

It is owned by the State Highway Agency.