Nh 16 SP Tpk over Silver Street
GoodStrafford County, New Hampshire · 3.5 MI N of Rochester Tl · Structure no. 017301870010900
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 92 ft
- 1 main span
- Daily traffic
- 14,518
- 2023 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
Nh 16 SP Tpk over Silver Street is a steel stringer/multi-beam or girder carrying Nh 16 SP Tpk over Silver Street in Strafford County, New Hampshire. It was built in 1980, so it is 45 years old, younger than the New Hampshire average of 56.9 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 14,518 vehicles a day, roughly 7% of them trucks, projected to reach 21,486 by 2043. The structure is 92 ft (28 m) long and 53 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nh 16 SP Tpk over Silver Street built?
It was built in 1980, making it 45 years old in 2025.
What condition is Nh 16 SP Tpk over Silver Street 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 June 2023.
How much traffic does Nh 16 SP Tpk over Silver Street carry?
About 14,518 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Nh 16 SP Tpk over Silver Street?
The structure is 92 ft (28 m) long with a longest span of 87 ft (26.5 m) and a deck 53 ft wide.
Who owns Nh 16 SP Tpk over Silver Street?
It is owned by the State Toll Authority.