US Bridges

IH 37 SB over US 59

Good

Live Oak County, Texas · 1H 37 at US 59 · Structure no. 161490007402147

Built
1975
50 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
339 ft
2 main spans
Daily traffic
11,572
2019 count
Owner
State
State Highway Agency

About this bridge

IH 37 SB over US 59 is a prestressed concrete stringer/multi-beam or girder carrying IH 37 SB over US 59 in Live Oak County, Texas. It was built in 1975, so it is 50 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 11,572 vehicles a day, roughly 20% of them trucks, projected to reach 11,630 by 2033. The structure is 339 ft (103.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37 SB
CrossesUS 59
Location1H 37 at US 59
RouteInterstate 37
StateTexas
Coordinates28.33763, -98.0266
Functional classRural 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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable 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 spans2 (+2 approach)
Design loadHS 20
Structure length339 ft (103.3 m)
Longest span105 ft (32 m)
Deck width44 ft (13.5 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,572 (2019)
Projected traffic11,630 by 2033
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
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 SB over US 59 built?

It was built in 1975, making it 50 years old in 2025.

What condition is IH 37 SB over US 59 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 February 2024.

How much traffic does IH 37 SB over US 59 carry?

About 11,572 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is IH 37 SB over US 59?

The structure is 339 ft (103.3 m) long with a longest span of 105 ft (32 m) and a deck 44 ft wide.

Who owns IH 37 SB over US 59?

It is owned by the State Highway Agency.