FHWA NBI 2024 Inspection record Public-domain dataset

MCCOLLUM ROAD

Carrying MCCOLLUM ROAD over SALINE RIVER

BRIDGEWATER TWP SEC 14, Washtenaw, Michigan

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
42 t Inventory load rating

Bridge Snapshot: MCCOLLUM ROAD

The MCCOLLUM ROAD bridge in Washtenaw, Michigan carries MCCOLLUM ROAD over SALINE RIVER. It was built in 1968, making it 58 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 236 vehicles, placing it in the lower-traffic tier of Michigan bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 41.5 metric tons.

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

How MCCOLLUM ROAD compares

▼ 0.2
Load rating vs Michigan average (41.7 t)
Top 41%
Higher load rating than 59% of Michigan bridges
93
Bridges in Washtenaw · 15 in Poor condition
MCCOLLUM ROAD 41.5 t
Michigan average 41.7 t

Live comparison across Michigan.

Historical Sufficiency Rating

PlainBridge-computed
95.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
41.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1968
Material
Prestressed Concrete
Number of Spans
1
Structure Length
9.1 m (30 ft)
Deck Width
8.3 m (27 ft)
Owner
County Highway Agency
Avg Daily Traffic
236 vehicles/day
Structure Number
000000000010991

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether MCCOLLUM ROAD 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 MCCOLLUM ROAD against other structures in Washtenaw and across Michigan. Michigan 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 MCCOLLUM ROAD?

MCCOLLUM ROAD in Washtenaw, Michigan has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is MCCOLLUM ROAD inspected?

MCCOLLUM ROAD'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 236 vehicles per day.

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

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

What is the inventory load rating for MCCOLLUM ROAD?

MCCOLLUM ROAD has an NBI inventory load rating of 41.5 metric tons.

Who is responsible for maintaining MCCOLLUM ROAD?

MCCOLLUM ROAD is owned and maintained by County Highway Agency.

How old is MCCOLLUM ROAD and does age affect safety?

MCCOLLUM ROAD was built in 1968, making it 58 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.