FHWA NBI 2024 Inspection record Public-domain dataset

SPRUCE

Carrying SPRUCE over DRAINAGE DITCH

100193104, Worth, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
31 t Inventory load rating

Bridge Snapshot: SPRUCE

The SPRUCE bridge in Worth, Iowa carries SPRUCE over DRAINAGE DITCH. It was built in 1955, making it 71 years old today. The structure is built primarily of concrete and spans 1 section, stretching 9.4 meters (31 feet) end to end. Daily traffic averages 30 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 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 30.8 metric tons.

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

How SPRUCE compares

▼ 0.1
Load rating vs Iowa average (30.9 t)
Bottom 48%
Lower load rating than 52% of Iowa bridges
89
Bridges in Worth · 19 in Poor condition
SPRUCE 30.8 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
64.3 / 100 - historical 50–79.9 band
Structural adequacy /55
29.3
Serviceability /30
23.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
30.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1955
Material
Concrete
Number of Spans
1
Structure Length
9.4 m (31 ft)
Deck Width
7.8 m (26 ft)
Owner
County Highway Agency
Avg Daily Traffic
30 vehicles/day
Structure Number
000000000356380

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 fair at 5/9, minor deterioration that routine maintenance should address.
  • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

SPRUCE 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 SPRUCE against other structures in Worth 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 SPRUCE?

SPRUCE in Worth, Iowa 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 SPRUCE inspected?

SPRUCE'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 30 vehicles per day.

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

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

SPRUCE has an NBI inventory load rating of 30.8 metric tons.

Who is responsible for maintaining SPRUCE?

SPRUCE is owned and maintained by County Highway Agency.

How old is SPRUCE and does age affect safety?

SPRUCE was built in 1955, making it 71 years old.

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.