US Bridges

2nd LN SE over Greenfield Canal 053

Good

Teton County, Montana · 2M SE Fairfield · Structure no. L50040000+06001

Built
1938
87 years old, rebuilt 1994
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
53 ft
2 main spans
Daily traffic
18
2023 count
Owner
County
County Highway Agency

About this bridge

2nd LN SE over Greenfield Canal 053 is a wood or timber stringer/multi-beam or girder carrying 2nd LN SE over Greenfield Canal 053 in Teton County, Montana. It was built in 1938 and reconstructed in 1994, so it is 87 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 18 vehicles a day, roughly 3% of them trucks, projected to reach 19 by 2043. The structure is 53 ft (16.2 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries2nd LN SE
CrossesGreenfield Canal 053
Location2M SE Fairfield
RouteCounty Highway 50040
StateMontana
Coordinates47.60635, -111.94429
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44 US tons
Inventory rating29 US tons

Structure

MaterialWood or Timber
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span28 ft (8.4 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2023)
Projected traffic19 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 2nd LN SE over Greenfield Canal 053 built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1994.

What condition is 2nd LN SE over Greenfield Canal 053 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 November 2023.

How much traffic does 2nd LN SE over Greenfield Canal 053 carry?

About 18 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is 2nd LN SE over Greenfield Canal 053?

The structure is 53 ft (16.2 m) long with a longest span of 28 ft (8.4 m) and a deck 23 ft wide.

Who owns 2nd LN SE over Greenfield Canal 053?

It is owned by the County Highway Agency.