US Bridges

FM 3100 over Draw

Good

Brown County, Texas · 0.75 MI N of US 67 · Structure no. 230250318001001

Built
1930
95 years old
Condition
Good
inspected March 2024
Type
Culvert
Masonry
Length
30 ft
2 main spans
Daily traffic
787
2020 count
Owner
State
State Highway Agency

About this bridge

FM 3100 over Draw is a masonry culvert carrying FM 3100 over Draw in Brown County, Texas. It was built in 1930, so it is 95 years old, older 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 787 vehicles a day, roughly 7% of them trucks, projected to reach 975 by 2038. The structure is 30 ft (9.1 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM 3100
CrossesDraw
Location0.75 MI N of US 67
RouteState Highway 3100
StateTexas
Coordinates31.77083, -98.90346
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic787 (2020)
Projected traffic975 by 2038
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 3100 over Draw built?

It was built in 1930, making it 95 years old in 2025.

What condition is FM 3100 over 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 March 2024.

How much traffic does FM 3100 over Draw carry?

About 787 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is FM 3100 over Draw?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m) and a deck 27 ft wide.

Who owns FM 3100 over Draw?

It is owned by the State Highway Agency.