US Bridges

Flat Rock Place over Wetlands

Good

Middlesex County, Connecticut · 0.2 MI East of Route 153 · Structure no. 06658

Built
1996
29 years old
Condition
Good
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
3,518
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Flat Rock Place over Wetlands is a prestressed concrete box beam or girders - multiple carrying Flat Rock Place over Wetlands in Middlesex County, Connecticut. It was built in 1996, so it is 29 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 3,518 vehicles a day, roughly 1% of them trucks, projected to reach 5,227 by 2042. The structure is 65 ft (19.8 m) long and 59 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesFlat Rock Place
CrossesWetlands
Location0.2 MI East of Route 153
RouteCity Street 0
Coordinates41.29004, -72.44176
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span58 ft (17.7 m)
Deck width59 ft (17.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,518 (2022)
Projected traffic5,227 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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 Flat Rock Place over Wetlands built?

It was built in 1996, making it 29 years old in 2025.

What condition is Flat Rock Place over Wetlands 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 June 2022.

How much traffic does Flat Rock Place over Wetlands carry?

About 3,518 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Flat Rock Place over Wetlands?

The structure is 65 ft (19.8 m) long with a longest span of 58 ft (17.7 m) and a deck 59 ft wide.

Who owns Flat Rock Place over Wetlands?

It is owned by the Town or Township Highway Agency.