SH 99
Carrying SH 99 over BRAZOS RIVER
1.65 MI NE OF US 59, Fort Bend, Texas
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SH 99 in Fort Bend, Texas sits above 2% of rated Texas bridges on inventory load rating (22 t), while its 1994 build year is earlier than 64% of Fort Bend's recorded-year cohort (795 bridges).
SH 99 in Fort Bend, Texas is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1994, 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 TX:120800351004017
LATE-CENTURY · STEEL · MULTI-SPAN · SUB-LED · HEAVY-ADT · STANDARD-LOAD · CAT-POOR
- LATE-CENTURY 1980–1999
- STEEL Steel
- MULTI-SPAN 3 spans
- SUB-LED Substructure-led
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard 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: SH 99
The SH 99 bridge in Fort Bend, Texas carries SH 99 over BRAZOS RIVER. It was built in 1994, making it 32 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 365.8 meters (1200 feet) end to end. Daily traffic averages 18,892 vehicles, placing it in the heavily-trafficked tier of Texas bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 4/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order.
How SH 99 compares
Age against the county: built in 1994, earlier than 507 of Fort Bend's 795 bridges with a recorded construction year (64%), against a county median build year of 2001. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Texas bridges with a recorded inventory load rating (56,715 of 56,729 rated).
SH 99 vs every rated Texas bridge
Inventory load rating (metric tons), FHWA NBI, this state
22 Top 98% higher than 2% of 56,715 bridges
rated Texas 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.
Fort Bend inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 795 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
- 1994
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 365.8 m (1200 ft)
- Deck Width
- 22.2 m (73 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 18,892 vehicles/day
- Structure Number
- 120800351004017
Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • 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
SH 99 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 SH 99 against other structures in Fort Bend and across Texas. Texas 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 SH 99?
SH 99 in Fort Bend, Texas has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is SH 99 inspected?
SH 99'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 18,892 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SH 99 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 SH 99?
SH 99 has an NBI inventory load rating of 21.8 metric tons.
Who is responsible for maintaining SH 99?
SH 99 is owned and maintained by State Highway Agency.
How old is SH 99 and does age affect safety?
SH 99 was built in 1994, making it 32 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.