I-295 Bridges
New Releases
Existing Bridge Conditions
The I-295 South Bound / US 1 Bridge, constructed in 1959, is a three-span steel girder bridge with a concrete bridge deck. The bridge length 279 feet and the curb-to-curb width is 30 feet. The bituminous wearing surface is in satisfactory condition with a small pothole over the south abutment. There are a few scattered hairline cracks with efflorescence throughout the deck. There are spalled areas and delaminated concrete with exposed rebar adjacent to the bridge joints over the piers. The deck is in satisfactory condition. The steel girders have freckled rust along the bottom flanges and at beam ends. Some of the bridge bearings have moderate to heavysurface rust with minor to moderate section loss. The superstructure is in fair condition. The columns and horizontal concrete portions of the piers have cracking, rust staining, delamination and spalls with exposed rebar. The abutments have scattered hairline cracking and rust staining. The substructure is in poor condition.
The I-295 North Bound / US 1 Bridge, constructed in 1959, is a three-span steel girder bridge with a concrete bridge deck. The bituminous wearing surface is in satisfactory condition. There are afew scattered hairline cracks with efflorescence throughout the deck. There are spalled areas anddelaminated concrete with exposed rebar adjacent to the bridge joints over the piers. The deck isin fair condition. The steel girders have freckled rust along the bottom flanges and at beam ends.
The bearings over the piers are all in poor condition, with complete paint loss, and moderate to heavy section loss. The superstructure is in fair condition. The columns and horizontal concrete portions of the piers have cracking, rust staining, delamination and spalls with exposed rebar. The abutments have scattered hairline cracking and rust staining. The substructure is in poor condition.
Description of Replacements Bridge
The I-295 SB/ US 1 Bridge and the I-295 NB/US 1 Bridge over Route 1in Yarmouth will be replaced with three-span bridges, similar to the existing bridges built in 1959. The span lengths will be configured to accommodate future traffic/mobility needs for Route 1, with outside spans at 80 percent of the center span for structural efficiency. The proposed bridge typical section will more than likely be constructed of steel girders supporting a composite reinforced concrete deck. A steel girder bridge, properly detailed with corrosion-resistant materials will have a long service life with low maintenance costs.
The superstructure depth and bridge profile will be configured to maintain or improve the existing vertical clearance over I-295. Substructure elements will consist of reinforced concrete abutments and piers, most likely supported on piles. Interchange improvements along the carried roadway will include updated approach configurations to improve safety and mobility for pedestrians and bicyclist, as well as striping and signage to designatemultiuse corridors.
