US Bridges

SR 844 over Mad River

Fair

New Haven County, Connecticut · .2 Mile East of Route 69 · Structure no. 05710

Built
1935
90 years old, rebuilt 1989
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
9,700
2020 count
Owner
State
State Highway Agency

About this bridge

SR 844 over Mad River is a steel stringer/multi-beam or girder carrying SR 844 over Mad River in New Haven County, Connecticut. It was built in 1935 and reconstructed in 1989, so it is 90 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 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 9,700 vehicles a day, roughly 4% of them trucks, projected to reach 14,413 by 2040. The structure is 51 ft (15.5 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 844
CrossesMad River
Location.2 Mile East of Route 69
RouteState Highway 844
CountyNew Haven County
StateConnecticut
Coordinates41.55239, -73.00312
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span47 ft (14.3 m)
Deck width57 ft (17.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,700 (2020)
Projected traffic14,413 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 844 over Mad River built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1989.

What condition is SR 844 over Mad 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 October 2023.

How much traffic does SR 844 over Mad River carry?

About 9,700 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SR 844 over Mad River?

The structure is 51 ft (15.5 m) long with a longest span of 47 ft (14.3 m) and a deck 57 ft wide.

Who owns SR 844 over Mad River?

It is owned by the State Highway Agency.