SH 121 Bus over Elm Fork Trinity River
FairDenton County, Texas · 2.25 MI NE of IH 35E · Structure no. 180610036403017
- Built
- 1949
- 76 years old, rebuilt 1988
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 275 ft
- 3 main spans
- Daily traffic
- 40,866
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SH 121 Bus over Elm Fork Trinity River is a prestressed concrete stringer/multi-beam or girder carrying SH 121 Bus over Elm Fork Trinity River in Denton County, Texas. It was built in 1949 and reconstructed in 1988, so it is 76 years old, older than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 40,866 vehicles a day, roughly 7% of them trucks, projected to reach 54,110 by 2033. The structure is 275 ft (83.8 m) long and 85 ft wide. If it were closed, the detour would be 14.9 mi (24 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 121 Bus over Elm Fork Trinity River built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1988.
What condition is SH 121 Bus over Elm Fork Trinity River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.
How much traffic does SH 121 Bus over Elm Fork Trinity River carry?
About 40,866 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is SH 121 Bus over Elm Fork Trinity River?
The structure is 275 ft (83.8 m) long with a longest span of 70 ft (21.3 m) and a deck 85 ft wide.
Who owns SH 121 Bus over Elm Fork Trinity River?
It is owned by the State Highway Agency.