FHWA NBI 2024 Inspection record Public-domain dataset

SAWYER RD

Carrying SAWYER RD over TRIB TO BUFFALO CREEK

085050407, Linn, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
35 t Inventory load rating

Bridge Snapshot: SAWYER RD

The SAWYER RD bridge in Linn, Iowa carries SAWYER RD over TRIB TO BUFFALO CREEK. It was built in 1926, making it 100 years old today. It was last reconstructed in 1961, extending its service life. The structure is built primarily of concrete continuous and spans 2 sections, stretching 6.7 meters (22 feet) end to end. Daily traffic averages 1,100 vehicles, placing it in the moderately-trafficked tier of Iowa bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert 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 35.3 metric tons.

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

How SAWYER RD compares

▲ 4.4
Load rating vs Iowa average (30.9 t)
Top 28%
Higher load rating than 72% of Iowa bridges
428
Bridges in Linn · 20 in Poor condition
SAWYER RD 35.3 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
72.0 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
27.0
Essentiality /15
15.0
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 How the historical reference is calculated.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

Culvert
4/9
Poor (1–4)
Inventory Load Rating
35.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1926
Last Reconstructed
1961
Material
Concrete Continuous
Number of Spans
2
Structure Length
6.7 m (22 ft)
Deck Width
9.8 m (32 ft)
Owner
County Highway Agency
Avg Daily Traffic
1,100 vehicles/day
Structure Number
000000000221900

How to read this record

SAWYER RD 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 SAWYER RD against other structures in Linn and across Iowa. Iowa 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 SAWYER RD?

SAWYER RD in Linn, Iowa on the FHWA's 0–9 scale.

How often is SAWYER RD inspected?

SAWYER RD'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 1,100 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SAWYER RD 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 SAWYER RD?

SAWYER RD has an NBI inventory load rating of 35.3 metric tons.

Who is responsible for maintaining SAWYER RD?

SAWYER RD is owned and maintained by County Highway Agency.

How old is SAWYER RD and does age affect safety?

SAWYER RD was built in 1926, making it 100 years old and last reconstructed in 1961.

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.