US Bridges

Ferry ST over Broadwater Missouri 020

Fair

Broadwater County, Montana · Toston · Structure no. L04425000+02001

Built
1980
45 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Prestressed Concrete
Length
22 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Ferry ST over Broadwater Missouri 020 is a prestressed concrete channel beam carrying Ferry ST over Broadwater Missouri 020 in Broadwater County, Montana. It was built in 1980, so it is 45 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 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 22 ft (6.7 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesFerry ST
CrossesBroadwater Missouri 020
LocationToston
RouteCounty Highway 4425
CountyBroadwater County
StateMontana
Coordinates46.17273, -111.43745
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 above top of footing
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 rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Ferry ST over Broadwater Missouri 020 built?

It was built in 1980, making it 45 years old in 2025.

What condition is Ferry ST over Broadwater Missouri 020 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 Ferry ST over Broadwater Missouri 020 carry?

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

How long is Ferry ST over Broadwater Missouri 020?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 16 ft wide.

Who owns Ferry ST over Broadwater Missouri 020?

It is owned by the County Highway Agency.