US Bridges

Reservoir Lane over Rippowam River

Fair

Fairfield County, Connecticut · At Stamford Town Line · Structure no. 05852

Built
1990
35 years old
Condition
Fair
inspected February 2023
Type
Slab
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
410
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Reservoir Lane over Rippowam River is a prestressed concrete slab carrying Reservoir Lane over Rippowam River in Fairfield County, Connecticut. It was built in 1990, so it is 35 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 410 vehicles a day, roughly 1% of them trucks, projected to reach 609 by 2043. The structure is 42 ft (12.8 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesReservoir Lane
CrossesRippowam River
LocationAt Stamford Town Line
RouteCity Street 0
Coordinates41.16486, -73.54432
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating86.8 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2023)
Projected traffic609 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Reservoir Lane over Rippowam River built?

It was built in 1990, making it 35 years old in 2025.

What condition is Reservoir Lane over Rippowam 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 February 2023.

How much traffic does Reservoir Lane over Rippowam River carry?

About 410 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Reservoir Lane over Rippowam River?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns Reservoir Lane over Rippowam River?

It is owned by the Town or Township Highway Agency.