US Bridges

Interlaken Road over N Stamford Res Outlet

Fair

Fairfield County, Connecticut · Opp Rt 137 N of Route 15 · Structure no. 04068

Built
1941
84 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
3,400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Interlaken Road over N Stamford Res Outlet is a concrete arch - deck carrying Interlaken Road over N Stamford Res Outlet in Fairfield County, Connecticut. It was built in 1941, so it is 84 years old, older 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 3,400 vehicles a day, roughly 3% of them trucks, projected to reach 5,052 by 2043. The structure is 40 ft (12.2 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesInterlaken Road
CrossesN Stamford Res Outlet
LocationOpp Rt 137 N of Route 15
RouteCity Street 0
CountyFairfield County
StateConnecticut
Coordinates41.1244, -73.54078
Functional classUrban Minor 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating61.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2023)
Projected traffic5,052 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Interlaken Road over N Stamford Res Outlet built?

It was built in 1941, making it 84 years old in 2025.

What condition is Interlaken Road over N Stamford Res Outlet 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 March 2023.

How much traffic does Interlaken Road over N Stamford Res Outlet carry?

About 3,400 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Interlaken Road over N Stamford Res Outlet?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns Interlaken Road over N Stamford Res Outlet?

It is owned by the City or Municipal Highway Agency.