US Bridges

Mapledale Road over Race Brook

Good

New Haven County, Connecticut · 0.3 MI N of Route 152 · Structure no. 05255

Built
1983
42 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
2,449
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Mapledale Road over Race Brook is a concrete culvert carrying Mapledale Road over Race Brook in New Haven County, Connecticut. It was built in 1983, so it is 42 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 2,449 vehicles a day, roughly 2% of them trucks, projected to reach 3,639 by 2043. The structure is 26 ft (7.9 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMapledale Road
CrossesRace Brook
Location0.3 MI N of Route 152
RouteCity Street 0
CountyNew Haven County
StateConnecticut
Coordinates41.2921, -73.03017
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckOther
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,449 (2023)
Projected traffic3,639 by 2043
Trucks2%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Mapledale Road over Race Brook built?

It was built in 1983, making it 42 years old in 2025.

What condition is Mapledale Road over Race 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 April 2023.

How much traffic does Mapledale Road over Race Brook carry?

About 2,449 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Mapledale Road over Race Brook?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 36 ft wide.

Who owns Mapledale Road over Race Brook?

It is owned by the Town or Township Highway Agency.