US Bridges

Lincoln RD W over Canyon Creek

Fair

Lewis and Clark County, Montana · 5M NW Canyon Creek · Structure no. S00279017+09161

Built
1949
76 years old, rebuilt 1987
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
501
2023 count
Owner
State
State Highway Agency

About this bridge

Lincoln RD W over Canyon Creek is a wood or timber stringer/multi-beam or girder carrying Lincoln RD W over Canyon Creek in Lewis and Clark County, Montana. It was built in 1949 and reconstructed in 1987, so it is 76 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.

It carries about 501 vehicles a day, roughly 2% of them trucks, projected to reach 526 by 2043. The structure is 59 ft (18 m) long and 28 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesLincoln RD W
CrossesCanyon Creek
Location5M NW Canyon Creek
RouteState Highway 279
StateMontana
Coordinates46.84069, -112.28302
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating34 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 15
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic501 (2023)
Projected traffic526 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 Lincoln RD W over Canyon Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1987.

What condition is Lincoln RD W over Canyon 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 2023.

How much traffic does Lincoln RD W over Canyon Creek carry?

About 501 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Lincoln RD W over Canyon Creek?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Lincoln RD W over Canyon Creek?

It is owned by the State Highway Agency.