FHWA NBI 2024 Inspection record Public-domain dataset

FAS 1599

Carrying FAS 1599 over DRAINAGE CANAL

2.2 MI E MEYER, Adams, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
1 t Inventory load rating

Bridge Snapshot: FAS 1599

The FAS 1599 bridge in Adams, Illinois carries FAS 1599 over DRAINAGE CANAL. It was built in 1980, making it 46 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 25.0 meters (82 feet) end to end. Daily traffic averages 200 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 0.6 metric tons.

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

How FAS 1599 compares

▼ 34.0
Load rating vs Illinois average (34.6 t)
Bottom 1%
Lower load rating than 99% of Illinois bridges
325
Bridges in Adams · 19 in Poor condition
FAS 1599 0.6 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
32.7 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
18.0
Essentiality /15
14.7
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
0.6 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1980
Material
Prestressed Concrete
Number of Spans
1
Structure Length
25.0 m (82 ft)
Deck Width
9.2 m (30 ft)
Owner
County Highway Agency
Avg Daily Traffic
200 vehicles/day
Structure Number
001331000000000

Condition Analysis

  • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

FAS 1599 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 FAS 1599 against other structures in Adams and across Illinois. Illinois 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 FAS 1599?

FAS 1599 in Adams, Illinois has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is FAS 1599 inspected?

FAS 1599'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 200 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FAS 1599 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 FAS 1599?

FAS 1599 has an NBI inventory load rating of 0.6 metric tons.

Who is responsible for maintaining FAS 1599?

FAS 1599 is owned and maintained by County Highway Agency.

How old is FAS 1599 and does age affect safety?

FAS 1599 was built in 1980, making it 46 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.