EB COLL IA 100
Carrying EB COLL IA 100 over OVER CC RR & BIKE PATH
0.1 MI. S OF JCT. IA 100, Linn, Iowa
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
EB COLL IA 100 in Linn, Iowa sits above 73% of rated Iowa bridges on inventory load rating (36 t), while its 1982 build year is earlier than 59% of Linn's recorded-year cohort (506 bridges).
EB COLL IA 100 in Linn, Iowa is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1982, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure IA:000000000604800
LATE-CENTURY · STEEL · MULTI-SPAN · TIED-CTRL · ARTERIAL-ADT · STANDARD-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- STEEL Steel
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: EB COLL IA 100
The EB COLL IA 100 bridge in Linn, Iowa carries EB COLL IA 100 over OVER CC RR & BIKE PATH. It was built in 1982, making it 44 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 49.1 meters (161 feet) end to end. Daily traffic averages 2,140 vehicles, placing it in the moderately-trafficked tier of Iowa bridges. It is owned and maintained by State 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. All reported major components score above the Poor range.
How EB COLL IA 100 compares
Age against the county: built in 1982, earlier than 297 of Linn's 506 bridges with a recorded construction year (59%), against a county median build year of 1989. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Iowa bridges with a recorded inventory load rating (23,718 of 23,719 rated).
EB COLL IA 100 vs every rated Iowa bridge
Inventory load rating (metric tons), FHWA NBI, this state
36 Top 27% higher than 73% of 23,718 bridges
rated Iowa bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Linn inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 506 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1982
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 49.1 m (161 ft)
- Deck Width
- 10.7 m (35 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 2,140 vehicles/day
- Structure Number
- 000000000604800
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether EB COLL IA 100 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 EB COLL IA 100 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 EB COLL IA 100?
EB COLL IA 100 in Linn, 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 EB COLL IA 100 inspected?
EB COLL IA 100'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 2,140 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. EB COLL IA 100 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 EB COLL IA 100?
EB COLL IA 100 has an NBI inventory load rating of 35.6 metric tons.
Who is responsible for maintaining EB COLL IA 100?
EB COLL IA 100 is owned and maintained by State Highway Agency.
How old is EB COLL IA 100 and does age affect safety?
EB COLL IA 100 was built in 1982, making it 44 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.