FHWA NBI 2024 Inspection record Public-domain dataset

MANKAS CORNER RD

Carrying MANKAS CORNER RD over GORDON CREEK

0.15 MI E SUISUN VALLEY R, Solano, California

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
32 t Inventory load rating Lower than 63% of rated California bridges

MANKAS CORNER RD in Solano, California sits above 37% of rated California bridges on inventory load rating (32 t), while its 1961 build year is earlier than 73% of Solano's recorded-year cohort (373 bridges).

MANKAS CORNER RD in Solano, California is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1961, it carries 1 rated component 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 CA:23C0078

INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-GOOD

  • INTERSTATE-ERA 1950–1979
  • CONCRETE Concrete
  • MULTI-SPAN 3 spans
  • CULVERT-LED Culvert-led
  • 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: MANKAS CORNER RD

The MANKAS CORNER RD bridge in Solano, California carries MANKAS CORNER RD over GORDON CREEK. It was built in 1961, making it 65 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 7.0 meters (23 feet) end to end. Daily traffic averages 2,227 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.

How MANKAS CORNER RD compares

▲ 0.3
Load rating vs California average (32.1 t; 25,538 of 25,848 rated)
373
Bridges in Solano · 29 in Poor condition

Age against the county: built in 1961, earlier than 273 of Solano's 373 bridges with a recorded construction year (73%), against a county median build year of 1974. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

MANKAS CORNER RD 32.4 t
California average (25,538 of 25,848 rated) 32.1 t

Live comparison across California bridges with a recorded inventory load rating (25,538 of 25,848 rated).

MANKAS CORNER RD vs every rated California bridge

Inventory load rating (metric tons), FHWA NBI, this state

32 Top 63% higher than 37% of 25,538 bridges

rated California 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

Culvert
7/9
Good (7–9)
Inventory Load Rating
32.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Solano inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 373 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
1961
Material
Concrete Continuous
Number of Spans
3
Structure Length
7.0 m (23 ft)
Deck Width
14.9 m (49 ft)
Owner
County Highway Agency
Avg Daily Traffic
2,227 vehicles/day
Structure Number
23C0078

How to read this record

This page shows what the last federal inspection recorded, not whether MANKAS CORNER RD 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 MANKAS CORNER RD against other structures in Solano and across California. California 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 MANKAS CORNER RD?

MANKAS CORNER RD in Solano, California on the FHWA's 0–9 scale.

How often is MANKAS CORNER RD inspected?

MANKAS CORNER RD'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 2,227 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MANKAS CORNER RD 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 MANKAS CORNER RD?

MANKAS CORNER RD has an NBI inventory load rating of 32.4 metric tons.

Who is responsible for maintaining MANKAS CORNER RD?

MANKAS CORNER RD is owned and maintained by County Highway Agency.

How old is MANKAS CORNER RD and does age affect safety?

MANKAS CORNER RD was built in 1961, making it 65 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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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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.