US Bridges

FM 846 over Sulpher Springs Draw

Good

Martin County, Texas · 5.00 MI E of SH 137 · Structure no. 061560115501009

Built
1988
37 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
6
2022 count
Owner
State
State Highway Agency

About this bridge

FM 846 over Sulpher Springs Draw is a prestressed concrete box beam or girders - multiple carrying FM 846 over Sulpher Springs Draw in Martin County, Texas. It was built in 1988, so it is 37 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 6 vehicles a day, roughly 40% of them trucks, projected to reach 3,506 by 2042. The structure is 102 ft (31.1 m) long and 37 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesFM 846
CrossesSulpher Springs Draw
Location5.00 MI E of SH 137
RouteState Highway 846
CountyMartin County
StateTexas
Coordinates32.3688, -101.79097
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span101 ft (30.8 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2022)
Projected traffic3,506 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 846 over Sulpher Springs Draw built?

It was built in 1988, making it 37 years old in 2025.

What condition is FM 846 over Sulpher Springs Draw 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 2023.

How much traffic does FM 846 over Sulpher Springs Draw carry?

About 6 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is FM 846 over Sulpher Springs Draw?

The structure is 102 ft (31.1 m) long with a longest span of 101 ft (30.8 m) and a deck 37 ft wide.

Who owns FM 846 over Sulpher Springs Draw?

It is owned by the State Highway Agency.