US Bridges

CR 406 over Rough Branch

Fair

Brown County, Texas · 0.80 MI N of FM 2273 · Structure no. 230250AA0406001

Built
1932
93 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
34 ft
5 main spans
Daily traffic
60
2013 count
Owner
County
County Highway Agency

About this bridge

CR 406 over Rough Branch is a concrete culvert carrying CR 406 over Rough Branch in Brown County, Texas. It was built in 1932, so it is 93 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 60 vehicles a day, projected to reach 50 by 2033. The structure is 34 ft (10.4 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 406
CrossesRough Branch
Location0.80 MI N of FM 2273
RouteCounty Highway 406
CountyBrown County
StateTexas
Coordinates31.92454, -98.97886
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span6 ft (1.8 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2013)
Projected traffic50 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$10,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 406 over Rough Branch built?

It was built in 1932, making it 93 years old in 2025.

What condition is CR 406 over Rough Branch 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 April 2023.

How much traffic does CR 406 over Rough Branch carry?

About 60 vehicles per day (2013 count).

How long is CR 406 over Rough Branch?

The structure is 34 ft (10.4 m) long with a longest span of 6 ft (1.8 m) and a deck 21 ft wide.

Who owns CR 406 over Rough Branch?

It is owned by the County Highway Agency.