STONEYBROOK LANE
Carrying STONEYBROOK LANE over INDIAN CREEK
0.23 MI W OF JACKMAN ROAD, Monroe, Michigan
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
STONEYBROOK LANE in Monroe, Michigan sits above 92% of rated Michigan bridges on inventory load rating (63 t), while its 1979 build year is earlier than 40% of Monroe's recorded-year cohort (297 bridges).
STONEYBROOK LANE in Monroe, Michigan is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1979, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor 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 MI:000000000007315
INTERSTATE-ERA · PRESTRESS · MULTI-SPAN · SUB-LED · LOCAL-ADT · HEAVY-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- MULTI-SPAN 2 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-POOR Poor
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: STONEYBROOK LANE
The STONEYBROOK LANE bridge in Monroe, Michigan carries STONEYBROOK LANE over INDIAN CREEK. It was built in 1979, making it 47 years old today. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 14.6 meters (48 feet) end to end. Daily traffic averages 323 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 5/9, 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.
How STONEYBROOK LANE compares
Age against the county: built in 1979, earlier than 118 of Monroe's 297 bridges with a recorded construction year (40%), against a county median build year of 1973. This is one of the newer structures in its county.
Live comparison across Michigan bridges with a recorded inventory load rating (11,366 of 11,371 rated).
STONEYBROOK LANE vs every rated Michigan bridge
Inventory load rating (metric tons), FHWA NBI, this state
63 Top 8% higher than 92% of 11,366 bridges
rated Michigan 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.
Monroe inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 297 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
- 1979
- Material
- Prestressed Concrete
- Number of Spans
- 2
- Structure Length
- 14.6 m (48 ft)
- Deck Width
- 11.2 m (37 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 323 vehicles/day
- Structure Number
- 000000000007315
Condition Analysis
- • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear on file for this vintage.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
STONEYBROOK LANE 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 STONEYBROOK LANE against other structures in Monroe 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 STONEYBROOK LANE?
STONEYBROOK LANE in Monroe, Michigan has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is STONEYBROOK LANE inspected?
STONEYBROOK LANE'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 323 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STONEYBROOK LANE 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 STONEYBROOK LANE?
STONEYBROOK LANE has an NBI inventory load rating of 63.2 metric tons.
Who is responsible for maintaining STONEYBROOK LANE?
STONEYBROOK LANE is owned and maintained by County Highway Agency.
How old is STONEYBROOK LANE and does age affect safety?
STONEYBROOK LANE was built in 1979, making it 47 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.