US Bridges

S 43 over Divide Creek

FairPosted for load

Silver Bow County, Montana · Divide · Structure no. P00046076+08051

Built
1956
69 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
38 ft
2 main spans
Daily traffic
719
2023 count
Owner
State
State Highway Agency

About this bridge

S 43 over Divide Creek is a wood or timber stringer/multi-beam or girder carrying S 43 over Divide Creek in Silver Bow County, Montana. It was built in 1956, so it is 69 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 6 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 719 vehicles a day, roughly 5% of them trucks, projected to reach 755 by 2043. The structure is 38 ft (11.6 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesS 43
CrossesDivide Creek
LocationDivide
RouteState Highway 43
StateMontana
Coordinates45.7508, -112.7484
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38 US tons
Inventory rating27 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 15
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic719 (2023)
Projected traffic755 by 2043
Trucks5%
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

OwnerState Highway Agency
Maintained byState 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 43 over Divide Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is S 43 over Divide Creek 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 August 2024.

How much traffic does S 43 over Divide Creek carry?

About 719 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S 43 over Divide Creek?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 38 ft wide.

Who owns S 43 over Divide Creek?

It is owned by the State Highway Agency.