FHWA NBI 2024 Inspection record Public-domain dataset

CALAMINT TRAIL

Carrying CALAMINT TRAIL over TRIB TO SANDY CR

S 24 T 66 N R 18 W, Putnam, Missouri

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
3 t Inventory load rating

Bridge Snapshot: CALAMINT TRAIL

The CALAMINT TRAIL bridge in Putnam, Missouri carries CALAMINT TRAIL over TRIB TO SANDY CR. It was built in 1925, making it 101 years old today. It was last reconstructed in 2016, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 12.2 meters (40 feet) end to end. Daily traffic averages 5 vehicles, placing it in the lower-traffic tier of Missouri bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 5/9, substructure at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 2.7 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How CALAMINT TRAIL compares

▼ 31.0
Load rating vs Missouri average (33.7 t)
Bottom 1%
Lower load rating than 99% of Missouri bridges
213
Bridges in Putnam · 33 in Poor condition
CALAMINT TRAIL 2.7 t
Missouri average 33.7 t

Live comparison across Missouri.

Historical Sufficiency Rating

PlainBridge-computed
17.9 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
3.0
Essentiality /15
14.9
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
2.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1925
Last Reconstructed
2016
Material
Steel
Number of Spans
1
Structure Length
12.2 m (40 ft)
Deck Width
3.9 m (13 ft)
Owner
County Highway Agency
Avg Daily Traffic
5 vehicles/day
Structure Number
17859

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

CALAMINT TRAIL is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare CALAMINT TRAIL against other structures in Putnam and across Missouri. Missouri bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for CALAMINT TRAIL?

CALAMINT TRAIL in Putnam, Missouri has a deck rating of 7/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is CALAMINT TRAIL inspected?

CALAMINT TRAIL's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 5 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. CALAMINT TRAIL is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for CALAMINT TRAIL?

CALAMINT TRAIL has an NBI inventory load rating of 2.7 metric tons.

Who is responsible for maintaining CALAMINT TRAIL?

CALAMINT TRAIL is owned and maintained by County Highway Agency.

How old is CALAMINT TRAIL and does age affect safety?

CALAMINT TRAIL was built in 1925, making it 101 years old and last reconstructed in 2016.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.