US Bridges

Route 17 over Carr Brook

Fair

Middlesex County, Connecticut · 1.6 MI N of Route 66 · Structure no. 06027

Built
1938
87 years old, rebuilt 1990
Condition
Fair
inspected February 2024
Type
Slab
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
2,900
2021 count
Owner
State
State Highway Agency

About this bridge

Route 17 over Carr Brook is a prestressed concrete slab carrying Route 17 over Carr Brook in Middlesex County, Connecticut. It was built in 1938 and reconstructed in 1990, so it is 87 years old, older 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 2,900 vehicles a day, roughly 4% of them trucks, projected to reach 4,309 by 2041. The structure is 31 ft (9.4 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 17
CrossesCarr Brook
Location1.6 MI N of Route 66
RouteState Highway 17
Coordinates41.59627, -72.60542
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.5 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span26 ft (7.9 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2021)
Projected traffic4,309 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 17 over Carr Brook built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1990.

What condition is Route 17 over Carr 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 February 2024.

How much traffic does Route 17 over Carr Brook carry?

About 2,900 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Route 17 over Carr Brook?

The structure is 31 ft (9.4 m) long with a longest span of 26 ft (7.9 m) and a deck 36 ft wide.

Who owns Route 17 over Carr Brook?

It is owned by the State Highway Agency.