US Bridges

Route 9 Northbound over Cedar Grove Terrace

Fair

Middlesex County, Connecticut · 0.5 MI S of Route 153 · Structure no. 03338

Built
1966
59 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
101 ft
1 main span
Daily traffic
17,100
2022 count
Owner
State
State Highway Agency

About this bridge

Route 9 Northbound over Cedar Grove Terrace is a prestressed concrete stringer/multi-beam or girder carrying Route 9 Northbound over Cedar Grove Terrace in Middlesex County, Connecticut. It was built in 1966, so it is 59 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 17,100 vehicles a day, roughly 6% of them trucks, projected to reach 25,409 by 2042. The structure is 101 ft (30.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 9 Northbound
CrossesCedar Grove Terrace
Location0.5 MI S of Route 153
RouteState Highway 9
Coordinates41.33753, -72.39537
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.8 US tons
Inventory rating45.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length101 ft (30.8 m)
Longest span96 ft (29.3 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,100 (2022)
Projected traffic25,409 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 9 Northbound over Cedar Grove Terrace built?

It was built in 1966, making it 59 years old in 2025.

What condition is Route 9 Northbound over Cedar Grove Terrace in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does Route 9 Northbound over Cedar Grove Terrace carry?

About 17,100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Route 9 Northbound over Cedar Grove Terrace?

The structure is 101 ft (30.8 m) long with a longest span of 96 ft (29.3 m) and a deck 44 ft wide.

Who owns Route 9 Northbound over Cedar Grove Terrace?

It is owned by the State Highway Agency.