US Bridges

Route 151 over Mine Brook

Fair

Middlesex County, Connecticut · 0.6 MI S of Route 66 · Structure no. 05785

Built
1989
36 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
2,000
2021 count
Owner
State
State Highway Agency

About this bridge

Route 151 over Mine Brook is a concrete culvert carrying Route 151 over Mine Brook in Middlesex County, Connecticut. It was built in 1989, so it is 36 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 2,000 vehicles a day, roughly 3% of them trucks, projected to reach 2,972 by 2041. The structure is 27 ft (8.2 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 151
CrossesMine Brook
Location0.6 MI S of Route 66
RouteState Highway 151
Coordinates41.55502, -72.55094
Functional classUrban Collector

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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2021)
Projected traffic2,972 by 2041
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 151 over Mine Brook built?

It was built in 1989, making it 36 years old in 2025.

What condition is Route 151 over Mine 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 January 2024.

How much traffic does Route 151 over Mine Brook carry?

About 2,000 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Route 151 over Mine Brook?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 41 ft wide.

Who owns Route 151 over Mine Brook?

It is owned by the State Highway Agency.