US Bridges

SR 816 over Pootatuck River

Fair

Fairfield County, Connecticut · Center of Sandy Hook · Structure no. 05647

Built
1988
37 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
9,100
2020 count
Owner
State
State Highway Agency

About this bridge

SR 816 over Pootatuck River is a prestressed concrete slab carrying SR 816 over Pootatuck River in Fairfield County, Connecticut. It was built in 1988, so it is 37 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 9,100 vehicles a day, roughly 4% of them trucks, projected to reach 13,522 by 2040. The structure is 43 ft (13.1 m) long and 51 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSR 816
CrossesPootatuck River
LocationCenter of Sandy Hook
RouteState Highway 816
Coordinates41.4201, -73.28225
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span38 ft (11.6 m)
Deck width51 ft (15.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,100 (2020)
Projected traffic13,522 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 816 over Pootatuck River built?

It was built in 1988, making it 37 years old in 2025.

What condition is SR 816 over Pootatuck 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 March 2023.

How much traffic does SR 816 over Pootatuck River carry?

About 9,100 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SR 816 over Pootatuck River?

The structure is 43 ft (13.1 m) long with a longest span of 38 ft (11.6 m) and a deck 51 ft wide.

Who owns SR 816 over Pootatuck River?

It is owned by the State Highway Agency.