Old HWY 99 North over Thomas Creek
PoorSkagit County, Washington · 1.4 N JCT Cook Rd. · Structure no. 082392000000000
- Built
- 1934
- 91 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 52 ft
- 3 main spans
- Daily traffic
- 5,234
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Old HWY 99 North over Thomas Creek is a wood or timber stringer/multi-beam or girder carrying Old HWY 99 North over Thomas Creek in Skagit County, Washington. It was built in 1934, so it is 91 years old, older than the Washington average of 49.8 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 5,234 vehicles a day, roughly 10% of them trucks, projected to reach 7,895 by 2043. The structure is 52 ft (15.8 m) long and 32 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old HWY 99 North over Thomas Creek built?
It was built in 1934, making it 91 years old in 2025.
What condition is Old HWY 99 North over Thomas Creek 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 August 2024.
How much traffic does Old HWY 99 North over Thomas Creek carry?
About 5,234 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Old HWY 99 North over Thomas Creek?
The structure is 52 ft (15.8 m) long with a longest span of 18 ft (5.5 m) and a deck 32 ft wide.
Who owns Old HWY 99 North over Thomas Creek?
It is owned by the County Highway Agency.