The 2,719’ long Donald E. Davey Bridge, spanning the Sheepscot River, is New England’s first precast concrete segmental bridge. This bridge is 44'-8" wide with two 6' shoulders, a 4' sidewalk, and carries two lanes of traffic. Special design parameters have allowed the bridge to survive harsh winters and deicing salts. These include:

• Two expansion joints, one at each end of the bridge
• Epoxy coated reinforcing steel for improved corrosion resistance
• A top slab that is post-tensioned in both directions for increased durability
• Steam cured high-strength concrete (5,000 psi) used for the superstructure segments
• A latex-modified concrete overlay, with an option for an additional overlay
• Granite facing on the concrete curbs to protect against damage from snowplows

The bridge has effectively withstood the harsh impacts of winter while maintaining exceptional cost-efficiency. At bid, the cost of the bridge was $8.4 million, which saved the owner $3.9 million compared to the alternate steel bridge designs.

The superstructure is continuous from expansion joint to expansion joint. The bridge features 21 spans, with typical span lengths of 120'-10”. A total of 280 precast box girders were match-cast in a controlled facility in Eliot, Maine, before being transported to the site by truck. Each typical segment measures 44’-8” wide, 9’- 2¼” long, and 7’ deep, weighing approximately 38 tons. All segments were produced under stringent quality controls, utilizing steam curing to accelerate the concrete's strength gain. Two identical casting cells were employed to produce two segments daily, resulting in a total output of 10 segments per week.