US Bridges

Isom RD over Draw

Good

Bexar County, Texas · 200 Ft S of Sahara RD · Structure no. 150150B17405001

Built
2004
21 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
6,920
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Isom RD over Draw is a concrete culvert carrying Isom RD over Draw in Bexar County, Texas. It was built in 2004, so it is 21 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 6,920 vehicles a day, projected to reach 19,000 by 2031. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIsom RD
CrossesDraw
Location200 Ft S of Sahara RD
RouteCity Street 0
StateTexas
Coordinates29.53038, -98.49091
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,920 (2015)
Projected traffic19,000 by 2031
Trucks0%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Isom RD over Draw built?

It was built in 2004, making it 21 years old in 2025.

What condition is Isom RD 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 July 2023.

How much traffic does Isom RD over Draw carry?

About 6,920 vehicles per day (2015 count).

How long is Isom RD over Draw?

The structure is 22 ft (6.7 m) long with a longest span of 9 ft (2.7 m).

Who owns Isom RD over Draw?

It is owned by the City or Municipal Highway Agency.