US Bridges

S 569 over French Creek 043

FairPosted for load

Deer Lodge County, Montana · 21M SW Anaconda · Structure no. L12001019+08001

Built
1950
75 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
57 ft
3 main spans
Daily traffic
293
2023 count
Owner
County
County Highway Agency

About this bridge

S 569 over French Creek 043 is a wood or timber stringer/multi-beam or girder carrying S 569 over French Creek 043 in Deer Lodge County, Montana. It was built in 1950, so it is 75 years old, older 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. Its operating status is: posted for load restriction.

It carries about 293 vehicles a day, roughly 74% of them trucks, projected to reach 316 by 2043. The structure is 57 ft (17.4 m) long and 26 ft wide. If it were closed, the detour would be 75.2 mi (121 km).

Location

Open in Google Maps
CarriesS 569
CrossesFrench Creek 043
Location21M SW Anaconda
RouteCounty Highway 569
CountyDeer Lodge County
StateMontana
Coordinates45.91523, -113.10703
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 15
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic293 (2023)
Projected traffic316 by 2043
Trucks74%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.2 mi (121 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 S 569 over French Creek 043 built?

It was built in 1950, making it 75 years old in 2025.

What condition is S 569 over French Creek 043 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 April 2023.

How much traffic does S 569 over French Creek 043 carry?

About 293 vehicles per day (2023 count), of which roughly 74% are trucks.

How long is S 569 over French Creek 043?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns S 569 over French Creek 043?

It is owned by the County Highway Agency.