US Bridges

US 281 Nbml over Cibolo Creek

Good

Comal County, Texas · 1.75 MI S of FM 1863 · Structure no. 150460025303051

Built
1978
47 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
587 ft
8 main spans
Daily traffic
23,495
2023 count
Owner
State
State Highway Agency

About this bridge

US 281 Nbml over Cibolo Creek is a prestressed concrete stringer/multi-beam or girder carrying US 281 Nbml over Cibolo Creek in Comal County, Texas. It was built in 1978, so it is 47 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 23,495 vehicles a day, roughly 5% of them trucks, projected to reach 18,690 by 2033. The structure is 587 ft (178.9 m) long and 44 ft wide.

CarriesUS 281 Nbml
CrossesCibolo Creek
Location1.75 MI S of FM 1863
RouteU.S. Route 281
StateTexas
Coordinates29.71976, -98.44355
Functional classUrban Other Principal Arterial

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: 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 spans8 (+1 approach)
Design loadHS 20
Structure length587 ft (178.9 m)
Longest span69 ft (21 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,495 (2023)
Projected traffic18,690 by 2033
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 281 Nbml over Cibolo Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is US 281 Nbml over Cibolo Creek 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 June 2024.

How much traffic does US 281 Nbml over Cibolo Creek carry?

About 23,495 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 281 Nbml over Cibolo Creek?

The structure is 587 ft (178.9 m) long with a longest span of 69 ft (21 m) and a deck 44 ft wide.

Who owns US 281 Nbml over Cibolo Creek?

It is owned by the State Highway Agency.