US Bridges

US 83 over Northup Branch

Good

Ochiltree County, Texas · 19.5 MI S of SH 15 · Structure no. 041790003003026

Built
1934
91 years old, rebuilt 1970
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
36 ft
4 main spans
Daily traffic
1,127
2020 count
Owner
State
State Highway Agency

About this bridge

US 83 over Northup Branch is a concrete culvert carrying US 83 over Northup Branch in Ochiltree County, Texas. It was built in 1934 and reconstructed in 1970, so it is 91 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 1,127 vehicles a day, roughly 31% of them trucks, projected to reach 2,580 by 2033. The structure is 36 ft (11 m) long. If it were closed, the detour would be 24.2 mi (39 km).

CarriesUS 83
CrossesNorthup Branch
Location19.5 MI S of SH 15
RouteU.S. Route 83
StateTexas
Coordinates36.16084, -100.68002
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length36 ft (11 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,127 (2020)
Projected traffic2,580 by 2033
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 US 83 over Northup Branch built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1970.

What condition is US 83 over Northup 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 November 2023.

How much traffic does US 83 over Northup Branch carry?

About 1,127 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is US 83 over Northup Branch?

The structure is 36 ft (11 m) long with a longest span of 8 ft (2.4 m).

Who owns US 83 over Northup Branch?

It is owned by the State Highway Agency.