Craig Frontage RD over Wegner Creek 055

Fair

Lewis and Clark County, Montana · Craig · Structure no. L25003016+05001

Built: 1934; 91 years old
Condition: Fair; inspected October 2024
Type: Tee Beam; Concrete
Length: 41 ft; 1 main span
Daily traffic: 329; 2023 count
Owner: State; State Highway Agency

About this bridge

Craig Frontage RD over Wegner Creek 055 is a concrete tee beam carrying Craig Frontage RD over Wegner Creek 055 in Lewis and Clark County, Montana. It was built in 1934, so it is 91 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.

It carries about 329 vehicles a day, roughly 2% of them trucks, projected to reach 345 by 2043. The structure is 41 ft (12.5 m) long and 23 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesCraig Frontage RD

CrossesWegner Creek 055

LocationCraig

RouteState Highway 81003

CountyLewis and Clark County

StateMontana

Coordinates47.07652, -111.95563

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.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionOctober 2024

Inspection intervalevery 24 months

Operating statusOpen, no 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 geometry4: Meets minimum tolerable limits to be left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating33 US tons

Inventory rating26 US tons

Structure

Structure typeTee Beam

MaterialConcrete

DeckConcrete, cast-in-place

Main spans1

Design loadH 15

Structure length41 ft (12.5 m)

Longest span39 ft (12 m)

Deck width23 ft (7 m)

Roadway width20 ft (6.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic329 (2023)

Projected traffic345 by 2043

Trucks2%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed14.9 mi (24 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 Craig Frontage RD over Wegner Creek 055 built?

It was built in 1934, making it 91 years old in 2025.

What condition is Craig Frontage RD over Wegner Creek 055 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 October 2024.

How much traffic does Craig Frontage RD over Wegner Creek 055 carry?

About 329 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Craig Frontage RD over Wegner Creek 055?

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (12 m) and a deck 23 ft wide.

Who owns Craig Frontage RD over Wegner Creek 055?

It is owned by the State Highway Agency.