US Bridges

Spring Road over Five Mile Brook

Good

New Haven County, Connecticut · At Int W Alexander Drive · Structure no. 03960

Built
1936
89 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
4,300
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Spring Road over Five Mile Brook is a concrete slab carrying Spring Road over Five Mile Brook in New Haven County, Connecticut. It was built in 1936, so it is 89 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.

It carries about 4,300 vehicles a day, roughly 4% of them trucks, projected to reach 6,389 by 2038. The structure is 25 ft (7.6 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSpring Road
CrossesFive Mile Brook
LocationAt Int W Alexander Drive
RouteCity Street 0
Coordinates41.36296, -72.84646
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length25 ft (7.6 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2018)
Projected traffic6,389 by 2038
Trucks4%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Spring Road over Five Mile Brook built?

It was built in 1936, making it 89 years old in 2025.

What condition is Spring Road over Five Mile 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 March 2023.

How much traffic does Spring Road over Five Mile Brook carry?

About 4,300 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Spring Road over Five Mile Brook?

The structure is 25 ft (7.6 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns Spring Road over Five Mile Brook?

It is owned by the Town or Township Highway Agency.