FM 521 over Holmes RD & BNSF RR
GoodHarris County, Texas · 0.7 MI S of IH 610 · Structure no. 121020011101064
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 938 ft
- 8 main spans
- Daily traffic
- 18,618
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
FM 521 over Holmes RD & BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying FM 521 over Holmes RD & BNSF RR in Harris County, Texas. It was built in 1985, so it is 40 years old, younger than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 18,618 vehicles a day, roughly 6% of them trucks, projected to reach 26,065 by 2042. The structure is 938 ft (285.9 m) long and 67 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM 521 over Holmes RD & BNSF RR built?
It was built in 1985, making it 40 years old in 2025.
What condition is FM 521 over Holmes RD & BNSF RR in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.
How much traffic does FM 521 over Holmes RD & BNSF RR carry?
About 18,618 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is FM 521 over Holmes RD & BNSF RR?
The structure is 938 ft (285.9 m) long with a longest span of 84 ft (25.6 m) and a deck 67 ft wide.
Who owns FM 521 over Holmes RD & BNSF RR?
It is owned by the State Highway Agency.