US Bridges

SR 790 (south Stat over Rippowam River

Fair

Fairfield County, Connecticut · Near Exit 7 I-95 NB · Structure no. 03682

Built
1847
178 years old, rebuilt 2022
Condition
Fair
inspected April 2024
Type
Arch - Deck
Masonry
Length
118 ft
3 main spans
Daily traffic
5,700
2020 count
Owner
State
State Highway Agency

About this bridge

SR 790 (south Stat over Rippowam River is a masonry arch - deck carrying SR 790 (south Stat over Rippowam River in Fairfield County, Connecticut. It was built in 1847 and reconstructed in 2022, so it is 178 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 5,700 vehicles a day, roughly 3% of them trucks, projected to reach 8,470 by 2040. The structure is 118 ft (36 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 790 (south Stat
CrossesRippowam River
LocationNear Exit 7 I-95 NB
RouteState Highway 790
CountyFairfield County
StateConnecticut
Coordinates41.04596, -73.54531
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length118 ft (36 m)
Longest span30 ft (9.1 m)
Deck width37 ft (11.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2020)
Projected traffic8,470 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 790 (south Stat over Rippowam River built?

It was built in 1847, making it 178 years old in 2025. It was reconstructed in 2022.

What condition is SR 790 (south Stat 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 April 2024.

How much traffic does SR 790 (south Stat over Rippowam River carry?

About 5,700 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is SR 790 (south Stat over Rippowam River?

The structure is 118 ft (36 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.

Who owns SR 790 (south Stat over Rippowam River?

It is owned by the State Highway Agency.