US Bridges

Bus 45 over Post Oak Creek

Fair

Navarro County, Texas · 3.20 MI S of IH45 · Structure no. 181750009213036

Built
1930
95 years old, rebuilt 1961
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
129 ft
4 main spans
Daily traffic
9,804
2023 count
Owner
State
State Highway Agency

About this bridge

Bus 45 over Post Oak Creek is a concrete tee beam carrying Bus 45 over Post Oak Creek in Navarro County, Texas. It was built in 1930 and reconstructed in 1961, so it is 95 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,804 vehicles a day, roughly 9% of them trucks, projected to reach 13,150 by 2033. The structure is 129 ft (39.3 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBus 45
CrossesPost Oak Creek
Location3.20 MI S of IH45
RouteState Highway 45
StateTexas
Coordinates32.10384, -96.4636
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadH 15
Structure length129 ft (39.3 m)
Longest span27 ft (8.1 m)
Deck width60 ft (18.2 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,804 (2023)
Projected traffic13,150 by 2033
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Bus 45 over Post Oak Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1961.

What condition is Bus 45 over Post Oak Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Bus 45 over Post Oak Creek carry?

About 9,804 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Bus 45 over Post Oak Creek?

The structure is 129 ft (39.3 m) long with a longest span of 27 ft (8.1 m) and a deck 60 ft wide.

Who owns Bus 45 over Post Oak Creek?

It is owned by the State Highway Agency.