US Bridges

Delrey RD over Lazy Creek 124

Fair

Flathead County, Montana · 8M NW Whitefish · Structure no. L15293001+05001

Built
1995
30 years old
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Delrey RD over Lazy Creek 124 is a prestressed concrete slab carrying Delrey RD over Lazy Creek 124 in Flathead County, Montana. It was built in 1995, so it is 30 years old, younger than the Montana average of 47 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 30 ft (9.1 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesDelrey RD
CrossesLazy Creek 124
Location8M NW Whitefish
RouteCounty Highway 15293
StateMontana
Coordinates48.47494, -114.43304
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Delrey RD over Lazy Creek 124 built?

It was built in 1995, making it 30 years old in 2025.

What condition is Delrey RD over Lazy Creek 124 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 November 2023.

How much traffic does Delrey RD over Lazy Creek 124 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Delrey RD over Lazy Creek 124?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Delrey RD over Lazy Creek 124?

It is owned by the County Highway Agency.