US Bridges

Route 47 over Sprain Brook

Good

Litchfield County, Connecticut · 2 Miles No. of Route 132 · Structure no. 05570

Built
1988
37 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
70 ft
2 main spans
Daily traffic
2,300
2023 count
Owner
State
State Highway Agency

About this bridge

Route 47 over Sprain Brook is a concrete continuous slab carrying Route 47 over Sprain Brook in Litchfield 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,300 vehicles a day, roughly 5% of them trucks, projected to reach 3,418 by 2043. The structure is 70 ft (21.3 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRoute 47
CrossesSprain Brook
Location2 Miles No. of Route 132
RouteState Highway 47
CountyLitchfield County
StateConnecticut
Coordinates41.58284, -73.24863
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length70 ft (21.3 m)
Longest span33 ft (10.1 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic3,418 by 2043
Trucks5%
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 Route 47 over Sprain Brook built?

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

What condition is Route 47 over Sprain Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Route 47 over Sprain Brook carry?

About 2,300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Route 47 over Sprain Brook?

The structure is 70 ft (21.3 m) long with a longest span of 33 ft (10.1 m) and a deck 38 ft wide.

Who owns Route 47 over Sprain Brook?

It is owned by the State Highway Agency.