US Bridges

SH 121 Sbml over FM 2862

Fair

Collin County, Texas · 5.0 MI S of Hunt C/L · Structure no. 180430054903242

Built
2022
3 years old
Condition
Fair
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
374 ft
4 main spans
Daily traffic
8,235
2021 count
Owner
State
State Highway Agency

About this bridge

SH 121 Sbml over FM 2862 is a prestressed concrete stringer/multi-beam or girder carrying SH 121 Sbml over FM 2862 in Collin County, Texas. It was built in 2022, so it is 3 years old, younger 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 8,235 vehicles a day, roughly 13% of them trucks, projected to reach 11,530 by 2041. The structure is 374 ft (114 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesSH 121 Sbml
CrossesFM 2862
Location5.0 MI S of Hunt C/L
RouteState Highway 121
CountyCollin County
StateTexas
Coordinates33.35145, -96.45377
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length374 ft (114 m)
Longest span97 ft (29.6 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,235 (2021)
Projected traffic11,530 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 121 Sbml over FM 2862 built?

It was built in 2022, making it 3 years old in 2025.

What condition is SH 121 Sbml over FM 2862 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 November 2022.

How much traffic does SH 121 Sbml over FM 2862 carry?

About 8,235 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is SH 121 Sbml over FM 2862?

The structure is 374 ft (114 m) long with a longest span of 97 ft (29.6 m) and a deck 40 ft wide.

Who owns SH 121 Sbml over FM 2862?

It is owned by the State Highway Agency.