Connecticut Route 99

Route 99
Route information
Maintained by ConnDOT
Length:	10.64 mi[1] (17.12 km)
Existed:	1969 – present
Major junctions
South end:	Route 9 in Cromwell
	I-91 in Rocky Hill US 5 / Route 15 in Wethersfield
North end:	Wethersfield-Hartford town line
Highway system
Routes in Connecticut Special Service Roads • State Roads ← Route 97 Route 100 →

Route 99 is a state highway in Connecticut running for 10.64 miles (17.12 km) from Route 9 in Cromwell, through the town of Rocky Hill, ending in Wethersfield at the Hartford city line. The road continues into Hartford as a local road (Wethersfield Avenue). It is a former alignment of Route 9 prior to its upgrade to a freeway.

Route description

Route 99 begins as the northbound Exit 18 ramp of Route 9 in Cromwell. At the end of the off ramp, the road continues north as Main Street. (Access from Main Street to the southbound on-ramp for Route 9 is designated as State Road 901). Main Street is a two-lane road that goes north through Cromwell up to Rocky Hill for about 5.6 miles (9.0 km). At the junction with Elm Street (Route 160), the road becomes a four-lane road known as the Silas Deane Highway. The Silas Deane Highway continues through Rocky Hill up to the town of Wethersfield. It serves as the main thoroughfare of these two towns, also providing access to several shopping centers. Route 99 has interchanges with Interstate 91 in Rocky Hill and the Wilbur Cross Highway (Route 15) in Wethersfield. At the Hartford city line, Route 99 ends but the road continues into downtown Hartford as Wethersfield Avenue.^[1]

Special designations

The entire length of Route 99 is also known as the George Washington Memorial Highway.^[1]

History

The alignment of Route 99 was originally designated as part of New England Interstate Route 10 in the 1920s. The Silas Deane Highway was built in 1930 and New England Route 10 was shifted slightly west to use the new highway. In the 1932 state highway renumbering, the alignment was re-designated as Route 9. When Route 9 was upgraded to an expressway between I-91 and I-95 in 1969, the old surface alignment became Route 99.^[2]

On the route

In Cromwell, the Middletown Upper Houses Historic District was designated part of the National Register of Historic Places on July 27, 1979.

Junction list

Town	Road names	Junction	Milepost
Cromwell (3.91 miles)[1]	George Washington Memorial Highway, Main Street	Route 9 – Old Saybrook, New Britain	0.00-0.28 (ramp as main line)
		Route 372	0.97
Rocky Hill (3.55 miles)	Main Street, Silas Deane Highway	SSR 411	5.19
		Route 160	5.94
		I-91 (Exit 24)	7.11-7.39
Wethersfield (3.18 miles)	Silas Deane Highway	Route 3	8.48
		Route 175	9.03
		Route 314	10.33
		US 5 / Route 15	10.39-10.65
		Wethersfield Avenue (local)	10.64

References

1. ^ ^{a b c d} Connecticut State Highway Log
2. ^ Connecticut Routes, Route 99

External links

• Conn. Rt. 99 Photo