US Bridges

NFSR 233 over Beaver Creek

Fair

Lewis and Clark County, Montana · Beaver Creek No. 5 · Structure no. 011501000000072

Built
1978
47 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
26
2002 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 233 over Beaver Creek is a prestressed concrete stringer/multi-beam or girder carrying NFSR 233 over Beaver Creek in Lewis and Clark County, Montana. It was built in 1978, so it is 47 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 26 vehicles a day, projected to reach 39 by 2045. The structure is 81 ft (24.7 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesNFSR 233
CrossesBeaver Creek
LocationBeaver Creek No. 5
RouteFederal Lands Road 233
CountyLewis and Clark County
StateMontana
Coordinates47.54968, -112.74508
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span78 ft (23.9 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2002)
Projected traffic39 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NFSR 233 over Beaver Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is NFSR 233 over Beaver 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 June 2024.

How much traffic does NFSR 233 over Beaver Creek carry?

About 26 vehicles per day (2002 count).

How long is NFSR 233 over Beaver Creek?

The structure is 81 ft (24.7 m) long with a longest span of 78 ft (23.9 m) and a deck 16 ft wide.

Who owns NFSR 233 over Beaver Creek?

It is owned by the U.S. Forest Service.