US Bridges

Route 47 over Nonewaug River

Fair

Litchfield County, Connecticut · 0.6 Mile North of Route 6 · Structure no. 00999

Built
1956
69 years old, rebuilt 1986
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
1 main span
Daily traffic
4,200
2023 count
Owner
State
State Highway Agency

About this bridge

Route 47 over Nonewaug River is a steel stringer/multi-beam or girder carrying Route 47 over Nonewaug River in Litchfield County, Connecticut. It was built in 1956 and reconstructed in 1986, so it is 69 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 4,200 vehicles a day, roughly 3% of them trucks, projected to reach 6,241 by 2043. The structure is 73 ft (22.3 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 47
CrossesNonewaug River
Location0.6 Mile North of Route 6
RouteState Highway 47
Coordinates41.55773, -73.21203
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.4 US tons
Inventory rating39.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span69 ft (21 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2023)
Projected traffic6,241 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 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 Route 47 over Nonewaug River built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1986.

What condition is Route 47 over Nonewaug 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 August 2024.

How much traffic does Route 47 over Nonewaug River carry?

About 4,200 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Route 47 over Nonewaug River?

The structure is 73 ft (22.3 m) long with a longest span of 69 ft (21 m) and a deck 33 ft wide.

Who owns Route 47 over Nonewaug River?

It is owned by the State Highway Agency.