Pelican Creek Bridge Replacement Project—Yellowstone National Park, Wyoming
Bibliographic record
Abstract
Located on the East Entrance Road in Yellowstone National Park, Wyoming, the approximately 1,500-ft long Pelican Creek Bridge Replacement Project was completed in 2020, replacing an existing 197-ft long bridge and associated causeway that spanned the Pelican Creek Valley. The project is located near the north shore of Yellowstone Lake. The new bridge provided the opportunity to remove the approximately 1,300-ft long causeway, which was located within and bisected the Pelican Creek wetlands. Removal of the causeway provided significant environmental benefits by reconnecting wetlands and restoration of natural channel migration of Pelican Creek. The bridge is 9 spans and founded on large diameter open-end pipe piles. The soils at the site consist of liquefiable alluvial and lacustrine deposits. The site is within the Yellowstone Caldera and is an area of high seismicity. A peer-reviewed site-specific dynamic soil response analysis was conducted for the project. The recommended seismic design response spectra were much lower than the AASHTO standard procedure spectra at short periods. The liquefaction analysis demonstrated that portions of the soil profile were potentially liquefiable when subjected to design-level ground motions, and soils at the abutments were susceptible to lateral spreading. Ground improvement was performed at the abutments to mitigate the ground failure hazards associated with lateral spreading and lateral flow. The foundations consist of 24-in. pipe piles at the abutments and 42-in. pipe piles at the interior bents. Final design geotechnical investigations consisted of 18 borings and six cone penetration test soundings performed in 2016. Static analysis methods were supplemented with full-scale dynamic and static pile load tests at the site. A dynamic load test was performed on two piles at the site in 1997, when other projects were being constructed in the area. A dynamic and static load test program was completed in 2017. Following a 38-day setup period, the static load test was performed. Interpretation of the load test results, along with construction testing requirements, yielded pile lengths shorter than those calculated using static analysis methods. The reduction in pile length and number of splices required to be field welded resulted in significant time and cost savings to the contract. Due to the relatively short construction season in Yellowstone National Park, generally May to October, the reduction in pile lengths eliminated 1 year from the construction schedule.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".