US Bridges

SH 16 over Rock Branch

Good

Comanche County, Texas · 3.35 MI N of SH 6 · Structure no. 230470028804019

Built
1954
71 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
1,228
2020 count
Owner
State
State Highway Agency

About this bridge

SH 16 over Rock Branch is a concrete culvert carrying SH 16 over Rock Branch in Comanche County, Texas. It was built in 1954, so it is 71 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 1,228 vehicles a day, roughly 14% of them trucks, projected to reach 1,940 by 2033. The structure is 26 ft (7.9 m) long and 71 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSH 16
CrossesRock Branch
Location3.35 MI N of SH 6
RouteState Highway 16
StateTexas
Coordinates32.16715, -98.53547
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width71 ft (21.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,228 (2020)
Projected traffic1,940 by 2033
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 SH 16 over Rock Branch built?

It was built in 1954, making it 71 years old in 2025.

What condition is SH 16 over Rock Branch 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 SH 16 over Rock Branch carry?

About 1,228 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SH 16 over Rock Branch?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 71 ft wide.

Who owns SH 16 over Rock Branch?

It is owned by the State Highway Agency.