FHWA NBI 2024 Inspection record Public-domain dataset

FOOTHILL AVE

Carrying FOOTHILL AVE over BIG CEDAR RIVER

099183602, Mitchell, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
26 t Inventory load rating

Bridge Snapshot: FOOTHILL AVE

The FOOTHILL AVE bridge in Mitchell, Iowa carries FOOTHILL AVE over BIG CEDAR RIVER. It was built in 1950, making it 76 years old today. It was last reconstructed in 2010, extending its service life. The structure is built primarily of steel continuous and spans 4 sections, stretching 89.0 meters (292 feet) end to end. Daily traffic averages 1,021 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 a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 26.3 metric tons.

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

How FOOTHILL AVE compares

▼ 4.6
Load rating vs Iowa average (30.9 t)
Bottom 37%
Lower load rating than 63% of Iowa bridges
160
Bridges in Mitchell · 15 in Poor condition
FOOTHILL AVE 26.3 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
93.0 / 100 - historical 80–100 band
Structural adequacy /55
50.1
Serviceability /30
29.0
Essentiality /15
13.9
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 How the historical reference is calculated.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
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
26.3 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1950
Last Reconstructed
2010
Material
Steel Continuous
Number of Spans
4
Structure Length
89.0 m (292 ft)
Deck Width
10.6 m (35 ft)
Owner
County Highway Agency
Avg Daily Traffic
1,021 vehicles/day
Structure Number
000000000248750

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether FOOTHILL AVE is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare FOOTHILL AVE against other structures in Mitchell 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 FOOTHILL AVE?

FOOTHILL AVE in Mitchell, Iowa has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is FOOTHILL AVE inspected?

FOOTHILL AVE'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 1,021 vehicles per day.

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

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

What is the inventory load rating for FOOTHILL AVE?

FOOTHILL AVE has an NBI inventory load rating of 26.3 metric tons.

Who is responsible for maintaining FOOTHILL AVE?

FOOTHILL AVE is owned and maintained by County Highway Agency.

How old is FOOTHILL AVE and does age affect safety?

FOOTHILL AVE was built in 1950, making it 76 years old and last reconstructed in 2010.

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.