US Bridges

US Route 7 NB over Still River

Fair

Fairfield County, Connecticut · .55 MI S of US 202 Jct. · Structure no. 03928

Built
1975
50 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
139 ft
1 main span
Daily traffic
14,900
2021 count
Owner
State
State Highway Agency

About this bridge

US Route 7 NB over Still River is a steel stringer/multi-beam or girder carrying US Route 7 NB over Still River in Fairfield County, Connecticut. It was built in 1975, so it is 50 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 14,900 vehicles a day, roughly 6% of them trucks, projected to reach 22,140 by 2041. The structure is 139 ft (42.4 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS Route 7 NB
CrossesStill River
Location.55 MI S of US 202 Jct.
RouteU.S. Route 7
Coordinates41.46637, -73.40276
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.8 US tons
Inventory rating55.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span134 ft (40.8 m)
Deck width46 ft (13.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,900 (2021)
Projected traffic22,140 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 NB over Still River built?

It was built in 1975, making it 50 years old in 2025.

What condition is US Route 7 NB over Still 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 August 2024.

How much traffic does US Route 7 NB over Still River carry?

About 14,900 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is US Route 7 NB over Still River?

The structure is 139 ft (42.4 m) long with a longest span of 134 ft (40.8 m) and a deck 46 ft wide.

Who owns US Route 7 NB over Still River?

It is owned by the State Highway Agency.