FHWA NBI 2026 Inspection record Public-domain dataset

SKELTON RD

Carrying SKELTON RD over DEER CK BRANCH

5 SE OF LINCOLN, Logan, Illinois

FHWA NBI inspection record for this structure. Condition ratings, inventory load rating, span, deck width, and average daily traffic refresh annually with each NBI release.

Fair
24 t Inventory load rating

Bridge Snapshot: SKELTON RD

The SKELTON RD bridge in Logan, Illinois carries SKELTON RD over DEER CK BRANCH. It was built in 1963, making it 63 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 19.8 meters (65 feet) end to end. Daily traffic averages 75 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by Town/Township Highway Agency, the entity responsible for routine inspections and any needed repairs.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 5/9 on the 0–9 NBI scale, where 9 is excellent and 0 is failed. The weakest component sits in fair condition, which drives the overall status of this bridge. No major component scores in the poor range, so the bridge is not classified as structurally deficient under federal criteria. Its NBI inventory load rating is 23.5 metric tons — the load level the structure is rated to carry at inventory (long-term) level.

In a county that maintains hundreds of NBI-tracked bridges, SKELTON RD is one data point in a Illinois inventory that FHWA inspects on a two-year cycle (more often when ratings fall). Bridge age alone is not a reliable safety signal — a 63-era structure can outperform a newer one when maintenance is consistent, materials are sound, and traffic loads stay within design limits. Use the condition ratings above, the sufficiency score, and the structurally-deficient flag together to read the bridge's real status, and check the linked county and state pages to see how this bridge ranks against its peers.

Every figure on this page comes directly from the Federal Highway Administration National Bridge Inventory (NBI), the public dataset that catalogs more than 617,000 highway bridges across the United States and is updated annually from the records that each state Department of Transportation submits to the FHWA. The condition codes use the standardized FHWA Recording and Coding Guide, the same scale that determines federal eligibility for the Highway Bridge Program and the Surface Transportation Block Grant set-aside for off-system bridges. A "structurally deficient" classification under those federal criteria is a maintenance and funding flag, never a closure order; states keep deficient bridges open with load posting, weight limits, or accelerated inspection cycles until rehabilitation or replacement is funded. See our methodology for refresh cadence and the exact NBI release vintage powering each record.

How SKELTON RD compares

▼ 11.1
Load rating vs Illinois average (34.6 t)
Bottom 9%
Lower load rating than 91% of Illinois bridges
296
Bridges in Logan · 23 structurally deficient
SKELTON RD 23.5 t
Illinois average 34.6 t

NBI inventory load rating (metric tons) and structural-deficiency status compared across Illinois, computed live from the FHWA NBI.

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
23.5 t
NBI inventory level (metric tons)
SD Status
Not SD

Ratings are on a 0–9 scale: 9 = Excellent, 7–8 = Good, 5–6 = Fair, 3–4 = Poor, 0–2 = Critical/Failed. Sufficiency rating (0–100) combines structural adequacy, functional obsolescence, and essentiality.

Structural Details

Year Built
1963
Material
Concrete
Number of Spans
3
Structure Length
19.8 m (65 ft)
Deck Width
8.8 m (29 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
75 vehicles/day
Structure Number
054300500000000

Location

5 SE OF LINCOLN, Logan, Illinois
40.128772, -89.253683
View on Google Maps ↗

Data Source

Data from the FHWA National Bridge Inventory (NBI). Bridge inspections are required every two years by federal law. Conditions reflect the most recent inspection.

FHWA NBI Program ↗

Condition Analysis

Built in 1963, this bridge is 63 years old. It carries approximately 75 vehicles per day. Based on the most recent FHWA inspection:

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

Its NBI inventory load rating reflects the load level it is rated to carry.

Frequently Asked Questions

What do the condition ratings mean for SKELTON RD?

Bridge condition ratings use a 0–9 scale set by the Federal Highway Administration (FHWA). Ratings 7–9 indicate good condition with no significant problems. Ratings 5–6 mean fair condition with minor issues. Ratings 3–4 indicate poor condition requiring repair. Ratings 0–2 are critical, meaning the bridge has serious structural problems. SKELTON RD in Logan, Illinois has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 5/9.

How often is SKELTON RD inspected?

Federal law requires most highway bridges to be inspected at least every 24 months. Bridges in poor condition or with known issues may be inspected more frequently (every 12 months or less). SKELTON RD is part of the National Bridge Inventory maintained by the FHWA. With 75 vehicles crossing daily, regular inspection is essential.

What does "structurally deficient" mean for a bridge?

A structurally deficient bridge has at least one major component (deck, superstructure, or substructure) rated 4 or below on the FHWA 0–9 scale. This classification does NOT mean the bridge is unsafe for travel — it means the bridge needs repair, rehabilitation, or eventual replacement. Structurally deficient bridges remain open and are monitored. SKELTON RD is not classified as structurally deficient.

What is the inventory load rating for SKELTON RD?

The NBI inventory rating is the load level a bridge is rated to carry for an indefinite period, recorded in metric tons. A lower number means the structure is more load-restricted. SKELTON RD has an inventory load rating of 23.5 metric tons. It is distinct from the FHWA sufficiency rating, a separate 0–100 funding-eligibility score that this dataset does not include.

Who is responsible for maintaining SKELTON RD?

Bridge ownership and maintenance responsibility varies — bridges may be owned by state DOTs, counties, cities, railroads, or federal agencies. SKELTON RD is maintained by Town/Township Highway Agency. The FHWA oversees the National Bridge Inventory program and sets inspection standards, but day-to-day maintenance falls to the owning agency. If you notice damage or safety concerns, contact your state DOT or call 911 for emergencies.

How old is SKELTON RD and does age affect safety?

SKELTON RD was built in 1963, making it 63 years old. Bridge age alone does not determine safety — condition depends on materials, design, traffic load, maintenance history, and environmental exposure. Many older bridges remain in good condition due to regular maintenance and reconstruction.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A structurally deficient rating does not mean a bridge is closed or unsafe for travel — it indicates the bridge requires repair or replacement. For current closure or safety information, contact your state DOT.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial