US Bridges

Route 148 over Pattaconk Brook

Good

Middlesex County, Connecticut · 0.7 MI W of Route 15 · Structure no. 06637

Built
1984
41 years old
Condition
Good
inspected March 2023
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
4,400
2015 count
Owner
State
State Highway Agency

About this bridge

Route 148 over Pattaconk Brook is a steel culvert carrying Route 148 over Pattaconk Brook in Middlesex County, Connecticut. It was built in 1984, so it is 41 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 4,400 vehicles a day, roughly 5% of them trucks, projected to reach 6,538 by 2035. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 148
CrossesPattaconk Brook
Location0.7 MI W of Route 15
RouteState Highway 148
Coordinates41.39948, -72.48509
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 inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating69.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2015)
Projected traffic6,538 by 2035
Trucks5%
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 148 over Pattaconk Brook built?

It was built in 1984, making it 41 years old in 2025.

What condition is Route 148 over Pattaconk 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 March 2023.

How much traffic does Route 148 over Pattaconk Brook carry?

About 4,400 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Route 148 over Pattaconk Brook?

The structure is 28 ft (8.5 m) long with a longest span of 11 ft (3.4 m).

Who owns Route 148 over Pattaconk Brook?

It is owned by the State Highway Agency.