US Bridges

US Route 7 over Mnrr & Norwalk River

Fair

Fairfield County, Connecticut · 0.9 MI S of Route 15 · Structure no. 06070

Built
1992
33 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
255 ft
1 main span
Daily traffic
22,500
2020 count
Owner
State
State Highway Agency

About this bridge

US Route 7 over Mnrr & Norwalk River is a steel stringer/multi-beam or girder carrying US Route 7 over Mnrr & Norwalk River in Fairfield County, Connecticut. It was built in 1992, so it is 33 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 5 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 22,500 vehicles a day, roughly 6% of them trucks, projected to reach 33,433 by 2040. The structure is 255 ft (77.7 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS Route 7
CrossesMnrr & Norwalk River
Location0.9 MI S of Route 15
RouteU.S. Route 7
CountyFairfield County
StateConnecticut
Coordinates41.15542, -73.42464
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span110 ft (33.5 m)
Deck width80 ft (24.3 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,500 (2020)
Projected traffic33,433 by 2040
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US Route 7 over Mnrr & Norwalk River built?

It was built in 1992, making it 33 years old in 2025.

What condition is US Route 7 over Mnrr & Norwalk River 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 December 2022.

How much traffic does US Route 7 over Mnrr & Norwalk River carry?

About 22,500 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is US Route 7 over Mnrr & Norwalk River?

The structure is 255 ft (77.7 m) long with a longest span of 110 ft (33.5 m) and a deck 80 ft wide.

Who owns US Route 7 over Mnrr & Norwalk River?

It is owned by the State Highway Agency.