I 90 over Int Reserve Street
PoorMissoula County, Montana · Missoula · Structure no. I00090101+07082
- Built
- 1966
- 59 years old
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 195 ft
- 4 main spans
- Daily traffic
- 13,664
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Int Reserve Street is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Int Reserve Street in Missoula County, Montana. It was built in 1966, so it is 59 years old, older than the Montana average of 47 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 13,664 vehicles a day, roughly 9% of them trucks, projected to reach 14,552 by 2043. The structure is 195 ft (59.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Int Reserve Street built?
It was built in 1966, making it 59 years old in 2025.
What condition is I 90 over Int Reserve Street 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 March 2023.
How much traffic does I 90 over Int Reserve Street carry?
About 13,664 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I 90 over Int Reserve Street?
The structure is 195 ft (59.4 m) long with a longest span of 52 ft (15.8 m) and a deck 40 ft wide.
Who owns I 90 over Int Reserve Street?
It is owned by the State Highway Agency.