US Bridges

Cobble Road over Cobble Brook

Good

Litchfield County, Connecticut · 0.1 MI South Junc US 7 · Structure no. 06909

Built
2011
14 years old
Condition
Good
inspected April 2023
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
161
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Cobble Road over Cobble Brook is a concrete frame carrying Cobble Road over Cobble Brook 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 161 vehicles a day, roughly 3% of them trucks, projected to reach 239 by 2043. The structure is 28 ft (8.5 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCobble Road
CrossesCobble Brook
Location0.1 MI South Junc US 7
RouteCity Street 0
Coordinates41.73878, -73.45679
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable 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 rating48.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width25 ft (7.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic161 (2023)
Projected traffic239 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Cobble Road over Cobble Brook built?

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

What condition is Cobble Road over Cobble 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 April 2023.

How much traffic does Cobble Road over Cobble Brook carry?

About 161 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Cobble Road over Cobble Brook?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.

Who owns Cobble Road over Cobble Brook?

It is owned by the Town or Township Highway Agency.