US Bridges

SH 158 over Mackenzie Draw

Good

Sterling County, Texas · 3.75 MI N of US 87 · Structure no. 072160040601028

Built
1974
51 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
63 ft
6 main spans
Daily traffic
756
2022 count
Owner
State
State Highway Agency

About this bridge

SH 158 over Mackenzie Draw is a concrete culvert carrying SH 158 over Mackenzie Draw in Sterling County, Texas. It was built in 1974, so it is 51 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 756 vehicles a day, roughly 40% of them trucks, projected to reach 1,058 by 2042. The structure is 63 ft (19.2 m) long and 78 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesSH 158
CrossesMackenzie Draw
Location3.75 MI N of US 87
RouteState Highway 158
StateTexas
Coordinates31.88705, -100.95656
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span10 ft (3 m)
Deck width78 ft (23.8 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic756 (2022)
Projected traffic1,058 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 158 over Mackenzie Draw built?

It was built in 1974, making it 51 years old in 2025.

What condition is SH 158 over Mackenzie 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 May 2024.

How much traffic does SH 158 over Mackenzie Draw carry?

About 756 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is SH 158 over Mackenzie Draw?

The structure is 63 ft (19.2 m) long with a longest span of 10 ft (3 m) and a deck 78 ft wide.

Who owns SH 158 over Mackenzie Draw?

It is owned by the State Highway Agency.