US Bridges

Old Northfield RD over Branch Brook

GoodPosted for load

Litchfield County, Connecticut · 6.44 KM SW of Thomaston · Structure no. CEPNEDCT0910006

Built
1950
75 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
4
2023 count
Owner
Federal
Corps of Engineers (Civil)

About this bridge

Old Northfield RD over Branch Brook is a steel stringer/multi-beam or girder carrying Old Northfield RD over Branch Brook in Litchfield County, Connecticut. It was built in 1950, so it is 75 years old, older 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. Its operating status is: posted for load restriction.

It carries about 4 vehicles a day, projected to reach 50 by 2040. The structure is 51 ft (15.5 m) long and 25 ft wide.

CarriesOld Northfield RD
CrossesBranch Brook
Location6.44 KM SW of Thomaston
RouteFederal Lands Road 0
Coordinates41.66107, -73.11437
Functional classRural Local

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.8 US tons
Inventory rating29.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length51 ft (15.5 m)
Longest span44 ft (13.5 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4 (2023)
Projected traffic50 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCorps of Engineers (Civil)
Maintained byCorps of Engineers (Civil)
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Northfield RD over Branch Brook built?

It was built in 1950, making it 75 years old in 2025.

What condition is Old Northfield RD over Branch 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 August 2023.

How much traffic does Old Northfield RD over Branch Brook carry?

About 4 vehicles per day (2023 count).

How long is Old Northfield RD over Branch Brook?

The structure is 51 ft (15.5 m) long with a longest span of 44 ft (13.5 m) and a deck 25 ft wide.

Who owns Old Northfield RD over Branch Brook?

It is owned by the Corps of Engineers (Civil).