US Bridges

Route 148 over Great Brook

Good

Middlesex County, Connecticut · 0.7 MI W of Route 154 · Structure no. 02695

Built
2012
13 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
1,600
2015 count
Owner
State
State Highway Agency

About this bridge

Route 148 over Great Brook is a concrete culvert carrying Route 148 over Great Brook in Middlesex County, Connecticut. It was built in 2012, so it is 13 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 1,600 vehicles a day, roughly 2% of them trucks, projected to reach 2,377 by 2035. The structure is 34 ft (10.4 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 148
CrossesGreat Brook
Location0.7 MI W of Route 154
RouteState Highway 148
CountyMiddlesex County
StateConnecticut
Coordinates41.4042, -72.44907
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating36.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckOther
Main spans2
Design loadHL 93
Structure length34 ft (10.4 m)
Longest span16 ft (4.9 m)
Deck width54 ft (16.4 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2015)
Projected traffic2,377 by 2035
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 148 over Great Brook built?

It was built in 2012, making it 13 years old in 2025.

What condition is Route 148 over Great 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 January 2023.

How much traffic does Route 148 over Great Brook carry?

About 1,600 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Route 148 over Great Brook?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m) and a deck 54 ft wide.

Who owns Route 148 over Great Brook?

It is owned by the State Highway Agency.