US Bridges

Spruce Brook Road over Transylvania Brook

Good

New Haven County, Connecticut · 450FT West of RTE 172 Int · Structure no. 05032

Built
2018
7 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
330
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Spruce Brook Road over Transylvania Brook is a concrete culvert carrying Spruce Brook Road over Transylvania Brook in New Haven County, Connecticut. It was built in 2018, so it is 7 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 330 vehicles a day, roughly 6% of them trucks, projected to reach 490 by 2044. The structure is 26 ft (7.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSpruce Brook Road
CrossesTransylvania Brook
Location450FT West of RTE 172 Int
RouteCity Street 0
Coordinates41.48322, -73.25941
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (7.8 m)
Longest span12 ft (3.7 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2024)
Projected traffic490 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$994,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Spruce Brook Road over Transylvania Brook built?

It was built in 2018, making it 7 years old in 2025.

What condition is Spruce Brook Road over Transylvania 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 June 2024.

How much traffic does Spruce Brook Road over Transylvania Brook carry?

About 330 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Spruce Brook Road over Transylvania Brook?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.7 m) and a deck 31 ft wide.

Who owns Spruce Brook Road over Transylvania Brook?

It is owned by the Town or Township Highway Agency.