NO DATA ENTERED

over NO DATA ENTERED

NO DATA ENTERED, Beaverhead County, Montana

Condition

Good

Year Built

2008

Daily Traffic

50

Length

3 ft

About This Bridge

NO DATA ENTERED carries traffic over NO DATA ENTERED in Beaverhead County, Montana. Built in 2008, this structure is 18 years old, representing modern engineering and construction standards. The bridge features wood or timber construction with a arch - deck design, a combination chosen by engineers to meet the specific requirements of this crossing.

Approximately 50 vehicles cross this bridge daily, indicating lower traffic volumes common for local roads and rural routes. While traffic is lighter, these bridges still serve essential community transportation needs.

The bridge is currently rated in good condition based on federal inspection criteria established by the Federal Highway Administration. The structure meets current safety standards for its designated use and load capacity. With a total length of 3 feet, this is a shorter span typical of local road crossings, often carrying traffic over small streams, drainage channels, or other roadways.

The construction materials used in this bridge were selected based on engineering requirements, cost considerations, and local conditions at the time of construction.

Federal law requires that all highway bridges be inspected at least every 24 months by qualified inspectors following the National Bridge Inspection Standards (NBIS). Some bridges with known issues or unusual characteristics may be inspected more frequently. Inspection data is reported to the National Bridge Inventory, a database maintained by the Federal Highway Administration that tracks the condition of all public highway bridges in the United States. This bridge data is sourced from that federal database and reflects the most recent available inspection results.

Condition Ratings

7

Deck Condition

Good

7

Superstructure

Good

7

Substructure

Good

7

Channel & Protection

Good

7

Lowest Rating

Determines condition category

NBI condition ratings range from 0 (failed) to 9 (excellent). Ratings of 4 or below are considered poor. The overall condition category is determined by the lowest individual component rating.

With a lowest rating of 7, this bridge demonstrates good condition meeting all safety standards.

For a structure built in 2008, maintaining good condition demonstrates effective maintenance practices. If this bridge were closed, traffic would face a detour of approximately 621 miles, underscoring the importance of maintaining this crossing.

Bridge Details

Wood or Timber is the primary structural material, which influences maintenance requirements and expected lifespan. The arch - deck design was selected based on span requirements, load capacity needs, and site conditions at the time of construction. Maintenance responsibility falls to U.S. Forest Service.

Construction

Year Built2008
MaterialWood or Timber
Design TypeArch - Deck
OwnerU.S. Forest Service

Dimensions

Total Length3 ft (0.9 m)
Max Span3 ft (0.8 m)
Deck Width2 ft
Deck Area43 sq ft

Span dimensions affect structural design choices and load distribution. The deck area of 43 sq ft determines surface maintenance scope.

Classification

Route TypeFederal Lands
Route Number1203
Lanes On Bridge1
Lanes Under Bridge

Status

Toll BridgeNo
Historical SignificanceNot determined
Scour CriticalNo
Detour Length621 mi (999 km)

Traffic Data

Traffic volume data helps engineers assess bridge wear patterns and plan maintenance schedules. Average Daily Traffic (ADT) counts are updated periodically and represent typical weekday usage.

50

Avg Daily Traffic

Vehicles per day crossing this bridge

Truck Traffic

Commercial vehicle percentage

75

Projected Future ADT

Estimated future demand

This bridge carries approximately 50 vehicles per day, translating to roughly 18,250 crossings annually. Lower traffic volumes generally result in less structural wear over time.

Traffic projections estimate future volumes of 75 vehicles daily, a 50% increase from current levels. These projections inform capacity planning and potential upgrade requirements.

Load Ratings

Load ratings determine what weight this bridge can safely support. These values are critical for routing heavy vehicles and issuing overweight permits.

Operating Rating

3.5 tons

Maximum allowable load for special permits

Inventory Rating

2.7 tons

Load level for normal traffic

The operating rating of 3.5 tons represents the absolute maximum load this bridge can carry under controlled conditions with special permits. The inventory rating of 2.7 tons is the safe load limit for everyday traffic without restrictions. These relatively low ratings may result in posted weight limits or route restrictions for heavy vehicles.

5-Year Condition Trend

Stable

Condition has remained relatively stable since 2020

Data: 2020-2024 FHWA National Bridge Inventory

Location

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47.205278, -113.745000

Identification

Structure Number010203000012097
NBI IDMT-010203000012097
State FIPS30
County FIPS001

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Data Source: Federal Highway Administration (FHWA) National Bridge Inventory 2024

Bridge inspection data is typically updated every 24 months. Conditions may have changed since the last inspection.

“Structurally deficient” does not mean a bridge is unsafe or likely to collapse. It indicates that one or more key structural elements are in poor or worse condition. Bridges are inspected regularly and may have load restrictions in place.

This data is for informational purposes only and should not be used for route clearance or vehicle weight decisions.

NO DATA ENTERED over NO DATA ENTERED | Montana