US Bridges

Route 72 over Marsh Brook

Good

Litchfield County, Connecticut · 0.5 Mile North of Route 6 · Structure no. 01109

Built
2015
10 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
3,400
2020 count
Owner
State
State Highway Agency

About this bridge

Route 72 over Marsh Brook is a concrete culvert carrying Route 72 over Marsh Brook in Litchfield County, Connecticut. It was built in 2015, so it is 10 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 3% of them trucks, projected to reach 5,052 by 2040. The structure is 32 ft (9.8 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRoute 72
CrossesMarsh Brook
Location0.5 Mile North of Route 6
RouteState Highway 72
Coordinates41.6871, -73.0003
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckOther
Main spans2
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span14 ft (4.3 m)
Deck width45 ft (13.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2020)
Projected traffic5,052 by 2040
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

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 72 over Marsh Brook built?

It was built in 2015, making it 10 years old in 2025.

What condition is Route 72 over Marsh 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 August 2023.

How much traffic does Route 72 over Marsh Brook carry?

About 3,400 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Route 72 over Marsh Brook?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.3 m) and a deck 45 ft wide.

Who owns Route 72 over Marsh Brook?

It is owned by the State Highway Agency.