FHWA NBI 2024 Inspection record Public-domain dataset

GRANNIS RD.

Carrying GRANNIS RD. over GRANNIS CR

093083605, Fayette, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
9 t Inventory load rating

Bridge Snapshot: GRANNIS RD.

The GRANNIS RD. bridge in Fayette, Iowa carries GRANNIS RD. over GRANNIS CR. It was built in 1951, making it 75 years old today. It was last reconstructed in 2019, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 20.7 meters (68 feet) end to end. Daily traffic averages 29 vehicles, placing it in the lower-traffic tier of Iowa bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 7/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 9.1 metric tons.

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

How GRANNIS RD. compares

▼ 21.8
Load rating vs Iowa average (30.9 t)
Bottom 2%
Lower load rating than 98% of Iowa bridges
288
Bridges in Fayette · 74 in Poor condition
GRANNIS RD. 9.1 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
25.1 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
10.3
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
7/9
Good (7–9)
Inventory Load Rating
9.1 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1951
Last Reconstructed
2019
Material
Steel
Number of Spans
1
Structure Length
20.7 m (68 ft)
Deck Width
5.0 m (16 ft)
Owner
County Highway Agency
Avg Daily Traffic
29 vehicles/day
Structure Number
000000000151080

Condition Analysis

  • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

GRANNIS 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 GRANNIS RD. against other structures in Fayette 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 GRANNIS RD.?

GRANNIS RD. in Fayette, Iowa has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is GRANNIS RD. inspected?

GRANNIS 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 29 vehicles per day.

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

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

GRANNIS RD. has an NBI inventory load rating of 9.1 metric tons.

Who is responsible for maintaining GRANNIS RD.?

GRANNIS RD. is owned and maintained by County Highway Agency.

How old is GRANNIS RD. and does age affect safety?

GRANNIS RD. was built in 1951, making it 75 years old and last reconstructed in 2019.

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.