FHWA NBI 2026 Inspection record Public-domain dataset

IH820 MN LN/FR RDS

Carrying IH820 MN LN/FR RDS over TRIB TO MARINE CREEK

2.4 MI W OF FM 156, Tarrant, Texas

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: IH820 MN LN/FR RDS

The IH820 MN LN/FR RDS bridge in Tarrant, Texas carries IH820 MN LN/FR RDS over TRIB TO MARINE CREEK. It was built in 1976, making it 50 years old today. The structure is built primarily of concrete and spans 5 sections, stretching 11.6 meters (38 feet) end to end. Daily traffic averages 98,922 vehicles, placing it in the heavily-trafficked tier of Texas bridges. It is owned and maintained by State Highway Agency, the entity responsible for routine inspections and any needed repairs.

The latest FHWA inspection records show culvert at 6/9 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 23.6 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, IH820 MN LN/FR RDS is one data point in a Texas inventory that FHWA inspects on a two-year cycle (more often when ratings fall). Bridge age alone is not a reliable safety signal — a 50-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 IH820 MN LN/FR RDS compares

▼ 4.7
Load rating vs Texas average (28.3 t)
Bottom 4%
Lower load rating than 96% of Texas bridges
2,617
Bridges in Tarrant · 6 structurally deficient
IH820 MN LN/FR RDS 23.6 t
Texas average 28.3 t

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

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
23.6 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
1976
Material
Concrete
Number of Spans
5
Structure Length
11.6 m (38 ft)
Deck Width
215.6 m (707 ft)
Owner
State Highway Agency
Avg Daily Traffic
98,922 vehicles/day
Structure Number
022200000814237

Location

2.4 MI W OF FM 156, Tarrant, Texas
32.829233, -97.380111
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 ↗

Frequently Asked Questions

What do the condition ratings mean for IH820 MN LN/FR RDS?

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. IH820 MN LN/FR RDS in Tarrant, Texas.

How often is IH820 MN LN/FR RDS 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). IH820 MN LN/FR RDS is part of the National Bridge Inventory maintained by the FHWA. With 98,922 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. IH820 MN LN/FR RDS is not classified as structurally deficient.

What is the inventory load rating for IH820 MN LN/FR RDS?

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. IH820 MN LN/FR RDS has an inventory load rating of 23.6 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 IH820 MN LN/FR RDS?

Bridge ownership and maintenance responsibility varies — bridges may be owned by state DOTs, counties, cities, railroads, or federal agencies. IH820 MN LN/FR RDS is maintained by State 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 IH820 MN LN/FR RDS and does age affect safety?

IH820 MN LN/FR RDS was built in 1976, making it 50 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