Nh 16 SP Tpk SB over NH108 Csx(abd)
PoorStrafford County, New Hampshire · 0.2 MI from Jct. Rt 16 · Structure no. 006501320010100
- Built
- 1957
- 68 years old, rebuilt 1999
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 300 ft
- 6 main spans
- Daily traffic
- 21,323
- 2023 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
Nh 16 SP Tpk SB over NH108 Csx(abd) is a steel continuous stringer/multi-beam or girder carrying Nh 16 SP Tpk SB over NH108 Csx(abd) in Strafford County, New Hampshire. It was built in 1957 and reconstructed in 1999, so it is 68 years old, older than the New Hampshire average of 56.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 21,323 vehicles a day, roughly 8% of them trucks, projected to reach 31,558 by 2043. The structure is 300 ft (91.4 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nh 16 SP Tpk SB over NH108 Csx(abd) built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1999.
What condition is Nh 16 SP Tpk SB over NH108 Csx(abd) in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does Nh 16 SP Tpk SB over NH108 Csx(abd) carry?
About 21,323 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Nh 16 SP Tpk SB over NH108 Csx(abd)?
The structure is 300 ft (91.4 m) long with a longest span of 62 ft (18.9 m) and a deck 48 ft wide.
Who owns Nh 16 SP Tpk SB over NH108 Csx(abd)?
It is owned by the State Toll Authority.