ST 97 Killam Hill over I 95
FairEssex County, Massachusetts · 4.2 MI N Ipswich River · Structure no. B1901430DDOTNBI
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 257 ft
- 2 main spans
- Daily traffic
- 12,429
- 2025 count
- Owner
- State
- State Highway Agency
About this bridge
ST 97 Killam Hill over I 95 is a steel continuous stringer/multi-beam or girder carrying ST 97 Killam Hill over I 95 in Essex County, Massachusetts. It was built in 1974, so it is 51 years old, younger than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 12,429 vehicles a day, roughly 10% of them trucks, projected to reach 18,004 by 2032. The structure is 257 ft (78.3 m) long and 57 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST 97 Killam Hill over I 95 built?
It was built in 1974, making it 51 years old in 2025.
What condition is ST 97 Killam Hill over I 95 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.
How much traffic does ST 97 Killam Hill over I 95 carry?
About 12,429 vehicles per day (2025 count), of which roughly 10% are trucks.
How long is ST 97 Killam Hill over I 95?
The structure is 257 ft (78.3 m) long with a longest span of 127 ft (38.7 m) and a deck 57 ft wide.
Who owns ST 97 Killam Hill over I 95?
It is owned by the State Highway Agency.