US Bridges

IH 37 NB on Ramp over Nolan ST Row

Good

Bexar County, Texas · 0.70 MI S of IH 35 · Structure no. 150150007308152

Built
1972
53 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
13,700
2013 count
Owner
State
State Highway Agency

About this bridge

IH 37 NB on Ramp over Nolan ST Row is a prestressed concrete stringer/multi-beam or girder carrying IH 37 NB on Ramp over Nolan ST Row in Bexar County, Texas. It was built in 1972, so it is 53 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 13,700 vehicles a day, roughly 3% of them trucks, projected to reach 19,180 by 2033. The structure is 70 ft (21.3 m) long and 26 ft wide.

CarriesIH 37 NB on Ramp
CrossesNolan ST Row
Location0.70 MI S of IH 35
RouteInterstate 37
StateTexas
Coordinates29.42912, -98.481
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,700 (2013)
Projected traffic19,180 by 2033
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 37 NB on Ramp over Nolan ST Row built?

It was built in 1972, making it 53 years old in 2025.

What condition is IH 37 NB on Ramp over Nolan ST Row 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 2024.

How much traffic does IH 37 NB on Ramp over Nolan ST Row carry?

About 13,700 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is IH 37 NB on Ramp over Nolan ST Row?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 26 ft wide.

Who owns IH 37 NB on Ramp over Nolan ST Row?

It is owned by the State Highway Agency.