US Bridges

Route 68 over Ten Mile River

Good

New Haven County, Connecticut · 1.0 MI W of Route 70 · Structure no. 05571

Built
1987
38 years old
Condition
Good
inspected October 2023
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
6,700
2022 count
Owner
State
State Highway Agency

About this bridge

Route 68 over Ten Mile River is a prestressed concrete slab carrying Route 68 over Ten Mile River in New Haven County, Connecticut. It was built in 1987, so it is 38 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 6,700 vehicles a day, roughly 3% of them trucks, projected to reach 9,956 by 2042. The structure is 41 ft (12.5 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRoute 68
CrossesTen Mile River
Location1.0 MI W of Route 70
RouteState Highway 68
Coordinates41.51024, -72.94214
Functional classUrban Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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 alignment7: Better than present minimum criteria
Operating rating73.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span36 ft (11 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2022)
Projected traffic9,956 by 2042
Trucks3%
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

OwnerState Highway Agency
Maintained byState 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 Route 68 over Ten Mile River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Route 68 over Ten Mile River 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 October 2023.

How much traffic does Route 68 over Ten Mile River carry?

About 6,700 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Route 68 over Ten Mile River?

The structure is 41 ft (12.5 m) long with a longest span of 36 ft (11 m) and a deck 38 ft wide.

Who owns Route 68 over Ten Mile River?

It is owned by the State Highway Agency.