US Bridges

S 365-BRADY RD over Int Brady-I 15

Good

Pondera County, Montana · Brady · Structure no. S00365000+05101

Built
1964
61 years old, rebuilt 1976
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
303 ft
5 main spans
Daily traffic
260
2023 count
Owner
State
State Highway Agency

About this bridge

S 365-BRADY RD over Int Brady-I 15 is a prestressed concrete stringer/multi-beam or girder carrying S 365-BRADY RD over Int Brady-I 15 in Pondera County, Montana. It was built in 1964 and reconstructed in 1976, so it is 61 years old, older than the Montana average of 47 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 260 vehicles a day, roughly 6% of them trucks, projected to reach 277 by 2043. The structure is 303 ft (92.3 m) long and 31 ft wide.

CarriesS 365-BRADY RD
CrossesInt Brady-I 15
LocationBrady
RouteState Highway 365
StateMontana
Coordinates48.03551, -111.82992
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating17 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length303 ft (92.3 m)
Longest span67 ft (20.3 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2023)
Projected traffic277 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S 365-BRADY RD over Int Brady-I 15 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1976.

What condition is S 365-BRADY RD over Int Brady-I 15 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 2024.

How much traffic does S 365-BRADY RD over Int Brady-I 15 carry?

About 260 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is S 365-BRADY RD over Int Brady-I 15?

The structure is 303 ft (92.3 m) long with a longest span of 67 ft (20.3 m) and a deck 31 ft wide.

Who owns S 365-BRADY RD over Int Brady-I 15?

It is owned by the State Highway Agency.